Check protectors: the desk machine built to make a forged check impossible

By Matthew Partsch · Owl and Twig Vintage · September 20, 2026

A check protector does one job: it perforates or embosses the amount into the paper itself at the moment a check is written, so raising $10 to $1,000 tears the sheet rather than just lifting ink. Three companies patented three different ways to do this, sued each other over it for two decades, and left a desk full of cast iron behind when checks themselves started disappearing.

What a check protector actually does

A check protector is a desk-mounted mechanical device, usually cast iron, worked by a hand lever or foot pedal, built to stamp a dollar amount into a check at the moment it is written. The point is not to print the number more neatly than a pen would. It is to damage the paper in a way ink alone cannot fake and erasure alone cannot repair.

Gaylord Beebe's 1896 patent describes the mechanism in language that still holds up as the category's founding idea: the paper "is not simply indented" by the die, it "is at the same time broken," with ink forced into the break. A raised "$10" cannot become "$1,000" by adding a stroke of a pen, because the fibers themselves have already been perforated, scarified or embossed in the shape of the original number. Three companies built three different physical answers to that same idea, and this guide illustrates them as diagrams rather than photographs — the surviving machines sit behind museum accession numbers and auction paywalls checked in the research for this piece, not in any image collection reachable here.

The patent fight that invented the category

The category is older than the name attached to it. Max Berolzheimer's US Patent 97,344, granted November 30, 1869, describes a bank of spring-loaded, individually adjustable numbered punches that perforate specific positions on a pre-printed check margin — three decades before G.W. Todd & Co. existed at all.

Gaylord Beebe patented his own check protector in 1896 (US 554,613): male dies with beveled points strike a fixed die plate, breaking the paper and forcing ink into the break in one motion. Beebe refined it in a second patent, US 800,353, granted in 1905 and assigned to G.W. Todd & Co. — an oscillating roller inks the die face just before the needle points puncture the paper, then the same points pass through a second inking pad, marking both faces of every perforation.

Libanus M. Todd's own contribution came later and worked differently: US Patent 1,076,173, filed 1912 and granted October 21, 1913, describes a rotary die holder carrying interchangeable type dies, inked by a roller, pressed into the check by a platen. This is almost certainly the mechanism behind the machine G.W. Todd & Co. actually began marketing as "the Protectograph" in 1913. Todd's real invention, per the federal court that later upheld it, was combining Beebe's paper-scarifying perforation with his own inked embossing in a single die stroke.

Todd defended those patents in federal court through the 1910s and 1920s. In Todd Protectograph Co. v. Safe-Guard Check Writer Co., Judge Learned Hand upheld the patent claims as valid, citing commercial success — more than 500,000 machines sold before 1923 — and rapid copying by competitors as evidence the invention was real rather than obvious. Todd's suit against Hedman Mfg. Co. went the other way on appeal: an early decision favored Todd, and a later one found Todd itself had engaged in unfair practices, sharing sales agents with the very company it was suing.

Why a business needed one at all

The Negotiable Instruments Law, a uniform act adopted state by state beginning in New York in 1897, set the rule that made a check protector worth buying. Its material-alteration section held that an altered instrument is voided against most parties — except that a holder in due course who had no part in the alteration could still enforce it, but only "according to its original tenor." A $10 check raised to $1,000 and cashed left the bank or payee able to collect only the original $10 from the person who wrote it; someone in the chain absorbed the other $990.

That allocation of loss is the actual argument for a $20 desk machine. It converted an open-ended legal exposure — whatever a forger chose to add to a check after it left your hand — into a closed one at the moment of writing. Hedman's own advertising in the 1920s claimed its machine offered, in its words, "an absolute, 100 percent prevention of loss through alteration." No specific court decision found for this guide turns on a business's failure to use a check protector as the actual negligence finding; the connection here is the statute's structure plus the machines' own sales pitch, not a single court holding, and it is presented that way rather than as case law.

The companies behind the machines

George W. Todd and Libanus M. Todd founded G.W. Todd & Co. in Rochester, New York, in 1899, as dealers in office specialties. They built the Protectograph business on Beebe's assigned patents and Libanus Todd's own, litigated to defend it, and reorganized over time into the Todd Protectograph Company and then the Todd Company. Burroughs Corporation bought the company in 1955, according to Burroughs' own corporate history, which describes the acquisition as bringing in "a major supplier of checks, business forms, and check writers and signers." By 1968, the Protectograph trademark itself belonged to the Standard Register Company of Dayton, Ohio, a business-forms and check-security-paper company, registered for use on inking ribbons. How the name moved from Burroughs to Standard Register between 1955 and 1968 is not documented in any source checked for this guide.

Hedman Mfg. Co. was organized in Chicago in 1912 by Carl Hedman, a Swedish immigrant who had previously run a dental-instrument firm, and his son Herbert. Their F&E Check Writer launched in 1914 at $20 and had sold more than 300,000 units by 1921, using a shredding-comb mechanism that forced insoluble ink into shredded paper fibers in two alternating colors. Reported clients included Standard Oil, Coca-Cola, Quaker Oats, B.F. Goodrich and U.S. Steel. The company built a dedicated three-story factory on Chicago's Armitage Avenue in 1924 that stayed its headquarters for roughly seventy years, later moved into electronic check and document encoders, and appears to have wound down around 2011.

Paymaster's line traces to the Checkometer Sales Company, organized in Chicago in 1917 around George Willis's "Checkometer" device and commercialized by Theodore Hirschberg, a former Todd salesman. The company incorporated in 1920. One company-history source dates the first machine actually branded "Paymaster" to 1932; a separate source dates the corporate renaming to the Paymaster Corporation to 1940 — the two are plausibly consistent (a product name arriving before a corporate rename) but no source found here reconciles the exact sequence. The Hirschberg family ran the company through 1960s labor disputes and sold it in 1971; it appears to have ceased operating around 2000, though "The Paymaster Corporation" held later patents for check-writing machines and money-order imprinters as recently as 1991–1997, and a separate entity, Paymaster Systems International, registered the word mark PAYMASTER in 1994, claiming first use in commerce back to 1987.

A caution on trademark dates in this category generally: federal trademark filings from before 1946 are unevenly digitized, and none of the searchable records checked for this guide reach back to the machines' actual 1899–1917 origins. The registration numbers and first-use dates that do turn up — Standard Register's 1968 filing for PROTECTOGRAPH, Hedman's 1985 filing, Paymaster's 1991 filing — describe later corporate re-filings for later product lines, not the founding dates of the original machines.

How to tell a real one

No evidence turned up in this research of an active reproduction market for check protectors — these are heavy cast-iron office machines that would cost more to fake convincingly than a genuine one sells for. The real risk in this category is a seller's dating error, not a forger's. Five checks against the record above:

• The founding year. G.W. Todd & Co. did not exist before 1899. A listing dating a "1896 Todd Protectograph" — and one turned up in this research — predates the company by three years. Treat any pre-1899 Todd attribution as a seller error.
• The patent-date plate. A genuine machine carries a data plate listing patent dates. Cross-reference those against real grant dates: 1896 and 1905 for the Beebe patents, 1904 for Libanus Todd's printing-stamp patent, 1913 for the rotary type-wheel Protectograph patent. A plate citing a date before a patent was actually granted is inconsistent with itself.
• Rochester, not Buffalo. Every primary and institutional source checked here places G.W. Todd & Co. in Rochester, New York. One auction-lot description claims Todd was "a major Buffalo employer" bought out "in 1954" — both details conflict with Burroughs' own 1955 acquisition date and every other source's Rochester attribution, and should be treated as a probable lot-description error rather than corrected history.
• The Burroughs cutoff. Burroughs Corporation bought the Todd Company in 1955. A machine branded G.W. Todd & Co. or Todd Protectograph Co. should predate that; a Burroughs-branded one postdates it.
• The mechanism itself. Open the machine and look. A needle-perforation array (Beebe and early Todd), a rotary type-wheel that embosses and inks in one stroke (the Protectograph proper), and a fiber-shredding comb producing two alternating ink colors (Hedman's F&E) are three different constructions, and identifying which one is inside settles the maker even with a missing or worn plate.

The look-alikes

"Protectograph" gets used as a category word for any check protector the way "Kleenex" gets used for any tissue, and the machine underneath a given listing is not always the machine the listing name implies. Three real mechanisms were sold under competing brand names, patented separately, and defended separately in federal court:

A period trade survey of the category also lists Defiance, New Era, Peerless and Safe-Guard as competing brand names, alongside Todd and Hedman — a field crowded enough that a single object can plausibly wear any of six names on its casting even though only a handful of underlying mechanisms exist behind them. Our bubble lights guide covers a similar situation from the opposite direction: there, a single 1950 patent-invalidation ruling opened a market to a decade of small manufacturers overnight, rather than one company's patent holding for decades against many challengers, as happened here.

The other family of look-alikes is generational rather than mechanical: our credit card imprinter guide covers the machine that solved a related but different problem — authenticating a card presented to a merchant, rather than protecting a document the merchant itself was writing. Both sit in the same drawer of obsolete anti-fraud desk hardware, and both were killed by a change in how the underlying transaction worked rather than by any flaw in the machine.

What one sells for now

Every figure below is a labeled asking price. LiveAuctioneers, WorthPoint and Heritage Auctions all catalog check protectors, and every one of those listings locks its realized price behind a paywall or a sign-in wall. No verified sold figure for this category turned up anywhere in the research for this guide — say so rather than estimating one.

Listing	Condition	Price	Status
Protectograph Check Writer, G.W. Todd & Co., Rochester NY (serial #22, with instructions)	Complete, working, original label	$777.00	Asking
Protectograph Check Writer, Model H	Well used	$19.99 or best offer	Asking
Todd Protectograph, G.W. Todd & Co. (aggregator listing title)	Not independently verified	~$88.88	Asking

Shipping one without breaking it

A working check protector is a cast-iron machine with an internal die assembly and a moving lever or pedal, and most of the shipping damage risk here is mechanical rather than cosmetic. Brace the lever or pedal so it cannot travel during transit — a strip of rigid cardboard or a zip tie through the mechanism's rest position works, and it should be removed and mentioned to the buyer, not left as a surprise. Box weight adds up fast on cast iron; weigh the packed box before quoting shipping rather than guessing from the machine's footprint. Our packing guide covers box selection and cushioning for heavy, mechanically active objects in more detail, and our postal scale guide is the other specific object in this drawer built around period shipping and business equipment.

Why the category disappeared

Check volume itself has declined for decades, and the decline is well documented by the Federal Reserve system: a Federal Reserve Bank of Boston working paper tracked the long consumer shift away from paper checks, and in December 2025 the Federal Reserve Banks solicited public comment on winding down check-clearing services altogether given how far usage has fallen.

The mechanical check protector did not lose to a single better security technology so much as its own manufacturers moved the product line forward and routine business check-writing moved elsewhere. Paymaster's own later patents, filed as late as 1997, show the category migrating from pure mechanical embossing to ribbon-based electric imprinters through the 1980s and 1990s. Dedicated check-printing software for laser and inkjet printers has existed for business use since the mid-1990s, taking over the routine desk task the mechanical machines were built for. The physical machine survived longest in institutional back-office roles rather than on an ordinary business desk — cashier's checks and money orders, with the U.S. Postal Service repeatedly named across the sources checked here as a continuing user of mechanical or electric check-writing equipment.

Where the records disagree

A WorthPoint listing dates a "1896 Todd Co. Protectograph" three years before the company existed — almost certainly a seller's dating error rather than a documented earlier product, per the founding date given by University of Rochester's own campus history and the patent record above.

A Heritage Auctions lot description places G.W. Todd & Co. in Buffalo and dates its sale to competitors to 1954; every other source checked, including Burroughs Corporation's own company history, places Todd in Rochester, New York, and dates the Burroughs acquisition to 1955.

Paymaster's own timeline has a similar seam: one detailed local-history account dates the first machine actually branded "Paymaster" to 1932, while a separate reference source dates the company's own renaming to "Paymaster Corporation" to 1940. Both may be accurate for what they each describe — a product name and a later corporate rename — but no source checked for this guide states the two events' relationship to each other directly.

And the chain of custody for the Protectograph name itself has a real gap: Burroughs Corporation bought the Todd Company and its patents in 1955, and by 1968 the PROTECTOGRAPH trademark belonged to the Standard Register Company of Dayton, Ohio, for use on inking ribbons. No source checked for this guide documents how the name moved from one company to the other in those thirteen years.

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