I may need to crowdsource this one. Aluminum, size 11.75, WW2 era. Made on a lathe or out of aircraft/machine parts - interior has tool marks. Midcentury signet-style shape, but with MSW on front - monogram? Military significance? Stars of David on both shoulders with letter S - backwards! - machine printed. Actually, it looks not like a true Star of David - there is a triangle with points, and another overlaid triangle with rounded points. WT absolute F????