Tiffany Navy badge

[Halcyon]

Hi all, I collect vintage Tiffany items and came to acquire this badge, which from my limited research seems to point to a navy officer beret badge? It is sterling and 14k gold. I am curious what that ring at the bottom might be used for. To attach a chain to keep the brooch safe? Will this be a sweetheart pin? 
It weighs 7g in total. 
thanks for any insight! 
 

[KurtA]

That’s really nice!  I would say you are correct in believing it is a sweetheart pin- a gold chain would connect to the other missing part.  The missing part may be an officer’s rank insignia.   Based on the direction the eagle’s head is pointing, it is post 1941 manufacture.  
Can you post another photo with a coin next to it to provide size context? 

[Halcyon]

Thanks for the quick input! I am not familiar with militaria insignia so this little titbit is interesting that there could be another piece. The ring has a spring mechanism that opens like a necklace catch. I was entertaining that means it could be worn as a pendant but it would be upside down 🙃 
I don’t have a coin handy but used a ruler, it is about 1 1/4 inches across. 
 

[aznation]

Perhaps a chain attached to a pocket watch?  Of course in 14kt gold as well maybe.

[KurtA]

12 hours ago, Halcyon said:

Thanks for the quick input! I am not familiar with militaria insignia so this little titbit is interesting that there could be another piece. The ring has a spring mechanism that opens like a necklace catch. I was entertaining that means it could be worn as a pendant but it would be upside down 🙃 
I don’t have a coin handy but used a ruler, it is about 1 1/4 inches across. 
 

Thanks for posting. That's the size I would expect for a sweetheart pin/brooch.

Here's an example of what I was thinking might attach: