Coin auctions: rare, gold, ancient and British coins, searched at once

Coins are one of the oldest collecting markets there is, and also one of the most fragmented to search, dedicated numismatic auctioneers run their own specialist sales, while just as many good coins turn up in general auctions as part of a deceased estate or a "box of assorted coins" nobody has properly catalogued. Missing the right platform on the right day means missing the lot.

See it in action: one search across the-saleroom, eBay, NumisBids and more.

Why coin lots get missed

Specialist numismatic sales are watched closely by serious collectors and dealers, which is exactly why they're not where the bargains sit. An ancient coin, a rare English milled coin, an unrecognised proof or specimen strike, an error coin, or a small gold hoard is just as likely to surface in a general auction, described only as "a small quantity of coins" by a valuer who isn't a specialist. Catching those before someone else does means checking more platforms, more often, than is realistic for one person.

One search across every platform: including a numismatic specialist

Auction Bid Assistant's free browser extension searches the-saleroom, EasyLive, Bidspotter, Invaluable, NumisBids, iCollector and LiveAuctionWorld simultaneously, alongside eBay. NumisBids is itself a platform dedicated entirely to coin and banknote auctions worldwide, so a single search here already reaches specialist numismatic sales as well as the general auction houses where mis-catalogued lots hide. A search for a denomination, ruler, mint mark, country or term like "bullion," "English coins," "world coins," "proof set," "specimen coin" or "error coin" returns matching lots across all of them, with images, estimates, current bids where shown, and sale countdowns, sorted by platform in tabs.

Real results for "coin": 584 lots found in one search, from Turkish and Hong Kong coin sets to world coin fair specials.

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 a slow-moving but competitive market

Good coin lots don't come up often, so when they do, save a search (a ruler, country, mint, or "gold coin" 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 coin lots before adding the rest of the platforms via the extension.

Built for how coin 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 VAT included) is always in front of you.

Browse coin types

Coin collecting splits into distinct fields with their own quirks and premiums. Search any of these directly:

Common questions