Signed Southwestern Sterling Silver Turquoise and Leather Bolo Tie

Vintage very tarnished sterling silver bolo tie. It is set with a single green turquoise stone. It is hallmarked on the back but I cannot figure out what it says. Hogan tips are sterling as well. Slide measures 1 1/2" by 1 1/4". Tips are 2 1/8" long and have dents and dings. Tie is 36" long. Very tarnished black. Weight: 20.4 grams. Black braided leather is in good condition.