Old 2" Unusual Cast Brass Mystery Medallion Heavy. Scandinavian? Greek? Tribal?

Description

Old / Ant/ Vtg ? Unusual Large 2" x 1.75" Primitive Brass / Bronze Medallion w Old Scandinavian Viking Sailing Ship On One Side, Seated Shirtless Man w Headdress & Spear or Staff...& Animal (Dog?) on the Other Side. Some Tarnish Especially in Recessed Areas.  Shipped with USPS First Class. This is a Mystery Piece and any help is appreciated. Heavy-40 Grams. Scandinavian? Tribal? Greek? Latin? Religious? Primitive?