Featured Ring of unknown origin

Hopefully I will get some more (and better!) pictures once I unpack, but neither of my parents have any recollection of it. All I know is that it’s pretty small, and it was found in my basement. Could be from York, Pennsylvania, or Cos Cob/Greenwich, Connecticut, or Boston, Massachusetts, or even Iceland.

 

A skull,old mine cut diamond and someone's initials... no idea where it came from. Is there a maker's mark inside the band?

 

I’m not sure that’s a skull, but I’m kicking myself because I should have taken a dozen pictures before I packed it. Now I don’t have them and it’s making me nuts. I started taking pictures then got interrupted, and when I got back to it I thought I had taken pictures and just packed it up.

 

It's a one-off of some kind, from somewhere. I'd wear that if I had it. If that's a diamond it looks like an old-school cut.

 

I found some similar, some show the 14 karat gold mark inside the band. All of the sellers are claiming 1940s.

https://www.marketsquarejewelers.com/products/diamond-dragon-gwh-signet-ring

https://www.collectors1946.com/prod...low-gold-0-10ct-diamond-something-signet-ring

https://www.collectors1946.com/prod...w-gold-0-10ct-diamond-mlp-initial-signet-ring

 

I was thinking along the same lines as @i need help , that it was some type of rustic, woodsy font. Now that I have seen the other similar rings, I think it is a stylized Oriental calligraphy font.

Speculating wildly, if these rings are actually from the 1940s, I'm wondering if it has something to do with GI's fighting in the Pacific Theater.

 

Oooo, my grandfather fought in WWII - I wonder if it was a ring of his cut down for my grandmother.

It’s probably good I’m not sure what box the ring is in - I would be way too tempted to dig it out!

 

It could be a pinky ring, maybe.