Obverse Design The token says "A. GROSSO" and "COLON" in two lines across the center. All the lettering is incuse. The token has denticles along the edge and a rim.
Reverse Design Blank.
Metal Brass. Size and Shape Round, 24 mm in diameter.
Dates Issued Probably sometime after 1852.
Issurer A. Grosso.
Mintage Unknown.
Rarity Very Rare. Manufacturer Unknown. Source Rulau's Col A39.
Varieties None known.
Function Merchant token.
Population Count Known specimens are as follows:
  1. Raymond Brandon Specimen, pictured in Rulau's Latin American Tokens.
Notes Apparently this token was issued by A. Grosso after Chagre (mentioned on his other token) was no longer an important town. That would put the date at after 1852. This token has a dentured edge and a rim, which puts it a step above "GROSSO, A. COLON Y CHAGRE", and also leads me to think this token was the second type issued.