Sweet 1620 unattributed medieval silver denar

#2013-822 in MB. Obverse, coat of arms with year above. Reverse is unclear but appears to be patron saint Mary holding baby Jesus. Thanks for dropping by! Slava Ukrayini! Please note, I am not a dealer nor business, I'm simply selling my collections. I don't buy or trade, nor meet nor deliver... all purchases can be picked up in the lobby of my building of residence at Broadview/Pottery. I will gladly ship most items but will not pay postage nor accept responsibility for loss. I welcome any questions but at the first sign of insolence or trolling, the messenger will be blocked. I stand behind all my items and offer satisfaction guarantee or full refund. Thank you.