www.925-1000.com

Thanks for posting that ad. I had no idea that Bar-Tan used a different trademark, and I've never seen one of their ads before. Very interesting.

Any time, Trev!

I hope that the previous posters get to see the info, in case they're still wondering about the mysterious maker's mark.

It's been quite a long while since I started this thread, but I have found information about this hallmark (trademark). BAR-TAN MANUFACTURING CO of PROVIDENCE, RI. You can view the trademark information here: http://www.trademarkia.com/bar-72223377.html "On Thursday, July 15, 1965, a U.S. feder...

Here is the maker's mark and the ring from the 1970's (ignore the link in my previous post):
x

I would like to find out the name of the manufacturer who stamped their vintage (approx 1970's) sterling silver jewelry rings with "Sterling B"...and the letter B has an A inside the top part of the B and an R inside the bottom part of the B. I've seen this hallmark only on sterling silver...