This mark came from some sort of strange cup... maybe a shotglass? It has M/S Oslofjord engraved on it, which is what clued me in to its Swedish or Norwegian heritage. http://www.newtradejc.com/aws/eBay/images/jfiles/j1242-1.jpg http://www.newtradejc.com/aws/eBay/images/jfiles/j1242-3.jpg http://www...