Somehwere I hasve the PS magazine in color that had this cover from 1966. Will Eisner for those who dont know was a famous cartoonist at the time. he drew the Spirit, and Batman. in WWII he made a similar magazine with Joe Dope a typical pvt and maintaining his gear
The one for the M14...never seen an original copy but I guess they were in colour originally?
PS Magazine (PS-Post Script) is what they're officially called and dates back to WWII with two publications 'Army Motors' & 'Ordnance Sergeant', the latter been printed monthly. The first PS magazine was issued during the Korean War as basically was to get information out into the field asap. The design was to inform but also to entertain hence the comic slant, and no doubt Ms. Connie Rodd would get it.