The letter "J" replaced "H" for Jewish US servicemen.
: New Army Regulations AR 615-30 and replacement of "Army Serial Number" designation by "Army Service Number".
We can recreate replacement personalized Military Dog Tags for Active Duty, Reserve, National Guard, and Veterans. mil-spec embossed standard-issue, debossed with an optional historical notch, or laser engraved British tags and Canadian Identity Discs.