Peru, large bronze medal, 1870, Central Transandine Railroad (Callao to Oroya). 67.58 grams, 51mm. Obverse shows a steam locomotive proceeding through a town with mountains in background and reverse shows a long inscription (listing the chief engineer, plus President Balta and various government ministers), commemorating the opening of the Central Transandine Railroad on January 10, 1870. AU, light-even brown in color.
Estimate: $150 - 225