This has been a tough one as we expected to find a sterling silver hallmark somewhere but all we found was a dA signifying Danish made and an unknown SF or FS (depending on which way you look at it) as a potential maker?s mark. The design on the end also doesn?t really fit any know patterns but definite creams Danish Modern (duh). So we are left with a 5 inch Danish silver something handled bottle opener. Still highly collectible and likely won?t last long in our store. Will ship USPS with tracking to winning buyer