Watch List notes:

Colombia, Atlantico, Barranquilla, E. C. Gerlein, brass token, 1860s, E.C. GERLEIN, rev. MITAD (Rulau ATC 15), certified and graded by NGC as Mint State 62
Rulau records that E. C. Gerlein was a shopkeeper in Barranquilla and is not to be confused with the E. B. Gerlein who was the governor of Bolivar Department from 1889 to 1898.

Estimate: 50 - 100 GBP