COLOMBIA. Banco de la República de Colombia. 5 Pesos, 10 Pesos, July 20, 1927. P-376cts-377cts. Color Trial Specimens.2 notes in lot. This gorgeous pair of color trials is distinctive and beautiful. Each has zero numbers, but not stamped SPECIMEN in red. Oval TDL stamps at lower right. The 5 Pesos is carmine on both sides and quite striking. The 10 Pesos is green like the issue color used for the 5 Pesos notes. Each noted as previously mounted along one side of a back edge. Choice Uncirculated 64 and Choice Uncirculated 63 otherwise. Similar color trials sold in the 2016 Memphis auction realized $1,000 each. Both are rare and desirable.