I understand the author is talking about 45 coins found in some archeological site or by chance somewhere and the only evidence he's got of "a name" is on the coins. So, he says that "40% of the 45 coins bear the name of Abd...", which could as well mean that Mr. Abd, being some big fish, gave the mint-slaves the order to mint these coins with his name. Funny though again, una carta va a nom d'Abd, un paquet va a nom d'Abd (Abd being the receiver) Maybe the idea is that Abd is the owner of those coins, they are HIS coins and must come back to him at some stage. These guys were real tyrants, everything belonged to them...Luck...:-)