Obverse Design "HOWARD-ALBROOK" curves along the top. "NCO" and "OPEN MESS" appear in two lines across the middle. "CANAL ZONE" is below that, curving along the bottom. Circle of small beads close to the edge. Smooth plain raised edge. Reverse Design A large "25" with "IN TRADE" in an oval block across the middle of the number. Small C to the right of the upper part of the "25". Circle of small beads close to the edge. Smooth plain raised edge. Metal Aluminum, anodized green. Weight Unknown. Size and Shape Round, 28 mm in diameter. Dates Issued January, 1970. Issuer Albrook AFB and Howard AFB. Mintage 500. Rarity Very Rare. Manufacturer Meyer and Wenthe Company. Other Catalog Numbers Cunningham's CZ260b, Curto's SC400-25. Varieties Another very similar variety was made anodized black, and a smaller (24 mm) variety was made, also in green, without the dash between "HOWARD" and "ALBROOK". Function Mess token. Population Count Only one specimen in collector hands is known to me. I do not know of any recent sales.