COLOMBIA. Banco de la República de Colombia. 10 Pesos Oro. July 20, 1927. P-377sp. Specimen.Like all three TDL 1927 denominations, a tough type in Specimen or issued form and a beautiful blue face type. Red zero serial numbers, though not stamped “SPECIMEN” on the face. Referred to as “Specimen Proof” by PMG and similar to lot 10047 in Eldorado 1, which realized $1,080 in January 2018. This is not as bold as that PMG Gem Uncirculated 65, but still handsome.