Beautiful Vintage Sterling Silver and Large Round Faux Citrine Ring Size 6.5

Description

For sale is this stunning sterling silver and large round faux citrine ring.  The citrine, although not real, is really beautiful.  There is a makers mark inside but I'm not familiar with it and could not find any information on it.  But rings of this type were commonly made in the US in the 1930's.
It is a size 6.5.  It may have been sized at some point, because there is a spot in the middle of the band where the sterling is a slightly different texture.
Please see my other photos for more information.
Thank you for looking!
We are in the process of downsizing.  Along with cleaning out my jewelry box, I'm looking through drawers and boxes in my basement.  I'm amazed at what I'm finding to share with you!  :-)  In addition, I have recently come into possession of a large number of items from an estate auction. So please take a look at my other items!
I AM HAPPY TO COMBINE SHIPPING, JUST GIVE ME A HEADS UP THAT YOU ARE BIDDING ON OR PURCHASING MULTIPLE ITEMS!
BIDDERS WITH A U.S. SHIPPING ADDRESS ONLY PLEASE.  NO INTERNATIONAL SALES AS I CANNOT ACCOMMODATE INTERNATIONAL SHIPPING.
(I use various ring boxes to take the pictures, so the box shown does not come with the ring.  However, it will be shipped in a pretty gift box.)