Maker Hallmark ID help please - 14K YG

[Bron357]

Hullo Brains Trust, anyone recognize this hallmark? American Goldsmith?
It’s on a beautiful semi precious bead necklace I’ve had for years.
Any thoughts (please)

 

[PreRaphaelite]

Wish I could help but I can’t see well enough to know what to search for. This is the quick-reference I use:

https://www.langantiques.com/university/makers-marks-2/