Hallmark renderings - Unknown Origin

by Charlie
(Birmingham, Alabama USA)

ring & 2 hallmark renderings

I have a man's gold ring with what appears to be a synthetic stone but 18k golf with two hallmarks of unknown origin. Photo of renderings of the two hallmarks attached (impossible to photograph the actual ones due to wear). Turn them any direction for your own interprepation. Former owner of the ring was known to have top grade jewelry and watches. Any knowledge about the hallmarks?