The owner is a long time and very knowledgeable ancients dealer whose business previously was more reliant upon coin shows and less about internet presence. I have done business with him online however for years now thorough social media.
The auction feature is brand new with the first sale upcoming as a live sale in August. There are hundreds of photos of coins in that sale open currently for pre-bidding. His goal with this auction service is to provide ancients typically in the price point of US$150 and under, which opens up ancient collecting to many who can't afford the much higher priced types of the existing houses.
I've added photo sources before, I can secure & provide more info as needed. In the past the owner was contacted directly to verify permission and the website they wished to add on our info page in the list of sources.
As the current referee for ancient Greek coins, I can tell you that I constantly rely upon such sources for obscure types. Some types and variants are so rare that perhaps only one dealer/company will have it as it came in a newly discovered horde.