While performing my usual bottomfeeder auction routine, I came across this coin. I even had to outbid another bidder to get it, for the budget-breaking prize of £8. I appreciate this coin very much. I find it both intriguing, ugly and beautiful at the same time, a kind of attraction that I usually reserve for art, music, women and climbing routes. I don’t know much about these coins, though, and haven’t found a really good online resource for them yet. From what I have found on google, this is my ID so far: Brockage of a pre-reform Arab-Byzantine follis, imitating Constans II, 7th century AD, Ummayad Caliphate.AE Fals. Three figures standing facing (Emepror and his two Princes) / Large M surrounded by degraded inscriptions. Gamma below. Weight: 5,32g Diameter: 23mm Condition: Very Fine These coins are the earliest coins of the first Islamic Caliphate - after conquering the Byzantine Middle East, they issued coins in the corrupted style of Byzantine folli (especially of Constans II). These circulated for about a few decades, until the end of the 7th century. Does anyone here collect these? I’m in the market for a book on Islamic coins now, and was considering this one: «London: Spink & Son, 2015. vii, 285 pages, very thoroughly illustrated throughout in full color, decorative laminated boards, octavo, NEW. This first volume covers coins from approximately the 7th-10th centuries AD as well as prices for coins in very fine condition, and as such is a valuable update to the literature on Islamic coins. It also includes suggestions on further reading.» (vcoins) Any input from you would be great here, if it’s an Islamic-Byzantine coin from your collection, thoughts and knowledge about them, or a book recommendation.