Obverse Design "HOWARD ALBROOK" (no dash) curves along the top. "NCO" and "OPEN MESS" appear in two lines across the middle. "CANAL ZONE" is below that, curving along the bottom. There is a decorative dot on either side of "CANAL ZONE". 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, 24 mm in diameter. Dates Issued Unknown; probably in the 1960's as a subsequent type was issued in 1970. Issuer Albrook AFB and Howard AFB. Mintage Unknown. Rarity Very Rare. Manufacturer Tentatively attributed to Meyer and Wenthe Company. Other Catalog Numbers Cunningham's CZ250a. Varieties Two very similar but larger (28 mm) varieties were made was made, one anodized black and one green. However the larger varieties also have a dash between "HOWARD" and "ALBROOK", and no dots on either side of "CANAL ZONE". Function Mess token. Population Count Two specimens in collector hands are known to me. I do not know of any recent sales.