ProwlPRO . . .

Find the prey

29 vintage marketplaces, one search. Free.

Prowl by Owl & Twig is a free search tool for vintage collectors. Type a hunt or tap one of yours below, and it builds the same search for all 29 vintage marketplaces on one screen — open them one at a time, or all at once.

Field Guide on anything

Any maker, line or object. Marks, eras, prices, fakes, with sources.

Type any subject and Prowl researches a collector's field guide for it: how to recognize it, marks, eras, what it sells for, fakes and where to find it, with sources.

One search, every marketplace. All 29, from ShopGoodwill auctions to Facebook Marketplace, searched directly.

The Vintage Vault →

Prowl Alerts

New finds for your hunts, in your inbox. Only what you have not seen.

Free: 3 huntsPro: up to 100 huntsFirst month free

One email with new finds for your hunts on ShopGoodwill, eBay, Etsy, Chairish, Poshmark, Vinted and Grailed, only listings you have not seen. Every morning, three mornings a week, or just Mondays: you pick, and you pick which hunts go in. Free: 3 hunts. Prowl Pro: your first month is free, then $7 a month for up to 100 hunts, your whole Den, a price ceiling, skip-words, local-pickup hunts near your ZIP, unlimited photo checks and unlimited Fair price checks. We email you before the first charge. Cancel any time.

Try Prowl Pro free for a month

Or join the Owl & Twig list for news and new finds:

The occasional Owl & Twig note. Unsubscribe any time. The free Prowl stays free.

Prowl © 2026 Owl & Twig Vintage. All rights reserved. Some links to eBay earn Owl & Twig a small commission, at no cost to you.