States - Cauca. 1883, 5c violet, second issue, four examples including 5c printed denomination in angles being an exceedingly scarce example used in ms, the other three without indication of the denomination including one with red frame line, other with ruled pencil lines, and the third apparently without lines, in three diff. shades of violet, a scarce group. (Image)

1890, 5c red, a well margined example tied to cover front to RIosucio by two strikes of large "REPUBLICA DE COLOMBIA./DEPARTAMENTO DEL CAUCA/ADMON. PROVINCIAL DE HACIENDA/DE ATRATO." oval hs in violet, one of only about five covers recorded bearing this stamp (Image)

Tumaco. 1901, an exceptional group of nine covers travelled to Ecuador, France, Germany, Panama and USA, bearing four diff. frankings incl. rare vertical perf. 2 1/2c strip of four, very rarely offered. (Image)