Colombia, Provisional Government of Santander, 50 pesos, 8-1-1900, on a Banco de Santander, 50 pesos, 1-6-1873, series E, serial 1431, very rare. Pick-S835b; DPA-7679.1. Highest issued denomination of the series, a VF note with rough edges by design, especially rare in this grade and probably among the finest known. ($1200-1800)