Please visit our other websites: Ganoksin Jewelry Making Resource | Orchid Jewelry Making Forums | International Gem Society | IGS Gemstone and Gemology Forums

Silver Collector Forums

Sterling Silver Mark (reading correctly?)

Hi, I’m trying to figure out what sort of sterling silver pieces my mother has, and one mark is a bit confusing… on the bottom of a bowl, the marking appears to say:

Sterling 066

I assume that is just “990” printed upside down for some reason? Why else would it be marked as “sterling”? I’ve included a photo here… thanks for any help. Jonathan1959

This is the mark of Mueck-Carey Co (https://www.925-1000.com/americansilver_M6.html). The ID number may very well be 066 - 3 digits used in anticipation of reaching 100? Anyway why put the number upside down? Sterling is 925 and 990 silver would be too soft for purpose.

Phil