https://www.google.com/culturalinst...the-british-museum&em=m0242l&categoryId=other There are some very interesting and unique coins amongst the 91 that are currently on-line.
Very cool. FYI the art museum at Stanford has an excellent collection of ptolemaic coins from ptolemy I soter up through Diocletian. Not online yet I think.
For more pictures you can search the entire collection on the British Museum's website at this link. I use it often for research and I know that for Roman Republic coins you can search by Crawford number so for instance "Victoriatus 90/2" brings up this coin, found in a hoard circa 1969 and a reverse die match to one I own. If you've got an old volume of one of the British Museum catalogs this is a great way to get a better picture of any coins that don't show up well in the plates as well.
Yes, I use the site to look at all their other coins and items. I haven't been there in 30 (million it seems) years. However they have great resources on-line. And they seem to improve daily. I find the Sutton Hoo page to be one worth returning to from time to time.......amongst many others. https://www.google.com/culturalinstitute/beta/exhibit/sutton-hoo-anglo-saxon-ship-burial/gQOPNM9M btw I believe the 91 in the OP link are from an exhibit that tells the history of coinage. And like you, I found a die match to my Mithrapates in their collection. I found it pre-auction and for some silly reason it made me feel better about buying it.