This is an unofficial Arabic "dirham" or international trade coin: Dinar Wakala Dirham 2011 NOT LEGAL TENDER / 1 DIRHAM / 2011 PEACE / 2.975 GRAMS FINE SILVER / 1 DIRHAM AOCS APPROVED © DINAR WAKALA Size: 20mm Weight: 3.07gm (2.975gm ASW) AOCS is "American Open Currency Standard". Manufactured by Dinar Wakala of Round Rock, Texas.