The ancient coin search service (acsearch) has recently announced a significant upgrade to the scope of its database.
acsearch.info is an auction database containing numismatic auctions from various renowned international auction houses. The database in part goes back more than 17 years and contains pictures, descriptions and realized prices in several currencies.
The official announcement reads as follows:
The long-awaited acsearch image search has successfully completed the beta phase and is now available to all users. With this great new feature you can quickly and easily find entries of the same coin or die-matching coins in our archive. Areas of application include pedigree research, die studies, coin attributions, etc. The search works in real time and results are displayed within a few seconds. For an optimal search performance, please read the usage instructions.
Due to the complex and expensive infrastructure, the acsearch image search is subject to a fee (starting from 0.70 € per search).
All premium users receive 20 free search credits as a thank you for their support.