Hi! I recently bought this ring and have been trying to figure out whether it's actually old or not (I'm hoping it's from the 1920s-30s). It has STERLING marked in the band, but has the S missing; is it possible that the S wore off or is it just junk? And then it looks like there is some other mark right after it, but for the life of me, I can't figure out what it might be. If anyone has any insight, I would really appreciate it! Thank you!

