Obverse Design "N.C.O. CLUB" curves along the top. A horse-shoe shaped wreath appears in the center of the token. "FRANCE FIELD" curves along the bottom of the token. Circle of beads close to the edge. Smooth plain raised edge. Background is plain and smooth.
Reverse Design "GOOD FOR" curved along the top. Large "25" in the center with a serpentine pattern circle around it. "IN TRADE" curving along the bottom. Smooth plain raised edge. Background is a hatch pattern with small hatches in the center and large hatches near the edge.
Metal Brass. Weight Unknown. Size and Shape Round, 26 mm in diameter.
Dates Issued Before World War II.
Issuer France Field, air force base near Colon.
Mintage Unknown.
Rarity Rare. Manufacturer Unknown. Other Catalog Numbers Asociación Numismático's F-160, Cunningham's CZ190b, Curto's A102-25, Henkle's CZ-70, Plumer page #4.
Varieties None known.
Function Perhaps a post exchange token.
Population Count Three specimens in collector hands are known to me. I do not know of any recent sales.
Notes

The design is very similar to the MT-52.x (Albrook Field The NCO Club) series, and most likely was manufactured by the same company.