A hand-painted sign outside a Marine Corps avionics maintenance shop pokes fun with the slogan "Support Is Our Business," paired with illustrations of a bra and boxer shorts. The sign identifies the unit as H&MS-16 (Headquarters and Maintenance Squadron 16), part of Marine Aircraft Group 16, and lists its avionics officers and NCOIC by name -- a small but telling example of the wit that helped sustain morale at forward air facilities during the Vietnam War. Project: 219516