Silver Bell? Unknown marks : r/Hallmarks

Looking to get help identifying these hallmarks. Recent estate sale purchase in CA, USA. Passes rapid ice melt and non-magnetic tests - but not sure how else to tell if it's sterling

Silver Bell? Unknown marks : r/Hallmarks

Help Identifying Markings on Antique 14k Gold Cufflinks : r/Hallmarks

How to identify marks on silver

Antique Sterling Silver Sewing Thimble 4.6 grams Bell Shaped Makers Mark

Dutch Hallmarks - Encyclopedia of Silver Marks, Hallmarks & Makers' Marks

Antique Sterling Silver Sewing Thimble 4.6 grams Bell Shaped Makers Mark

How To Read Silver Hallmarks - A Beginners Guide

Swedish Silver Hallmarks - an explanation of the marks found on antique, vintage & collectible silver and jewelry from Sweden