I have a Victory, 6 inch barrel. Serial number V170407. All numbers match. No US gov markings on the gun. On the other side of the butt serial # there is a star (*) and what appears to be the bottom part of the ordnance bomb.(o). (might be a little on the small size so don't really know for sure.) It's a 38 S&W Special cartridge.

Additional marking under the grips.

Left side of the grip
Bottom Rear. Triangle with "B" in center. Next to that numeral "5"
Bottom Front. "1.47" and numeral "5"
Top Front. numeral "61"
Middle Front. numeral "8"

Right side of the grip
Bottom Front. "S"
Top front. "11"
Bottom middle around grip pin. a "K", a "1", and a "7" in a circle around the pin