usmm-cc 1943-1945 u.s. merchant marine cadet corps 1943-1945 Corps of Cadets insignia.Worn on garrison cap and shirt collar.Corps of Cadets insignia (reverse).U.S. Merchant Marine identification badge.Replaced the original Corps of Cadets insignia and was worn on shirt collars and garrison cap. Known endearingly among C-M/N as a "Manhole Cover."U.S. Merchant Marine identification badge (reverse).Corps of Cadets identification plaque.This identifies the wearer as a Cadet-Midshipman 3rd-class.Corps of Cadets company number patch.Blue on grey identifies this patch as worn on the shoulder of the navy-blue undress shirt.Corps of Cadets. Company number patches.Blue on gray and blue on khaki. Blue on khaki (with blue ring) were worn on khaki work shirts. Company numbers were 1-6 with P eventually appearing for Plebe postwar.Corps of Cadets C-M/N Embroidered variant for the combination cap. 1939-45.Cadet Corps C/M embroidered device for the combination cap (reverse). 1939-44.Corps of Cadets C-M/N Embroidered variant for the combination cap. 1944.Corps of Cadets S cuff & shoulder board device.If a C-M/N was delayed in returning to Kings Point due to an extended cruise or wartime circumstances, they were placed in a "Special" class. This device was placed above their program identifier.