Penny Black & classic GB stamp auctions: 1840 onwards, searched at once

The Penny Black, issued in 1840, was the world's first adhesive postage stamp and remains the most recognisable name in philately, and classic GB stamps from the Victorian and early 20th-century period are collected for plate number, margins, postmark and overall condition. A four-margin example with a clean postmark can be worth many times a trimmed, heavily cancelled one, which makes condition assessment before bidding essential.

Why Penny Black and classic GB lots get missed

General sellers often can't tell a genuinely fine four-margin Penny Black from a trimmed or heavily cancelled example, and list them the same way, so a careful buyer who checks every platform can spot the difference before anyone else does.

One search across every platform

Auction Bid Assistant's free browser extension searches the-saleroom, EasyLive, Bidspotter, Invaluable, NumisBids, iCollector and LiveAuctionWorld simultaneously, alongside eBay. Search "Penny Black," a plate number, or a classic GB stamp issue name and results return across all of them, with images, estimates, current bids where shown, and sale countdowns, sorted by platform in tabs.

Real results for "penny black stamp": genuine four-margin Penny Black examples plus a certified 1840 presentation piece, found in one search.

It works by searching from inside your own browser, the same as opening and searching each site yourself, just done in seconds. Nothing is stored on our servers, permissions are minimal, and the extension never places a bid on your behalf.

Alerts: for the plates or issues you collect

Save a search (a plate number, an issue name, or "Penny Black" generally) and get emailed the moment a new lot matches it, across all covered platforms including eBay and NumisBids, rather than relying on remembering to check each one.

Want to try before installing?

The same search box works on this website with no install at all for eBay, iCollector, LiveAuctionWorld and Featured Auction catalogues, a quick way to see matching Penny Black lots before adding the rest of the platforms via the extension.

Built for how classic GB stamp collectors actually work

Save any lot with one click from search results, export your shortlist as a printable PDF or CSV before a sale, and on the day itself the optional live bridge feeds the auctioneer's asking price into the free bid calculator, so your maximum (with buyer's premium and any applicable taxes included) is always in front of you.

Common questions