Help with Vintage hallmarks- gold bracelets

[mjea]

Hi everyone!

I thought I’d check in with the experts here!
I bought these two bracelets ~20 years ago from a vintage shop in NYC.

Based on the photos, is anyone here able to give me more information about the time period?
The bangle says 1/20-12k gold filled, and the chain bracelet says 1/20-12kgf. I assume both are 12k gold filled - not sure what the 1/20 means though.
Thank you!!

 

[88_star]

The 1/20 means the gold filled layer (in this case 12k) is 1/20th of the piece's total weight.

Really pretty bracelets with nice details! They look Victorian style but the stamping of the gold content looks more modern than that so I would estimate around 1930s.