Well I found a couple more with Hallmarks. Like this Watch band 52g 2.5” cuff 1.5 gap stamped MC
This little one. It has a different feel to it… it’s lighter than the others. Not sure what it is …it’s just different. 40g 1.5 wide 2.5 cuff 1”gap. Stamped J.k
This is also J.K. 34g 2.25” cuff 1” gap
** note: the price tags on some pieces. We’re already there. From the person who traded them to my grandfather circa 1970’s.