COLOMBIA. Lot of (2) El Banco Hipotecario. 5 Pesos, 1881. P-S511p1 & S511p2. Front & Back Proofs. PMG Uncirculated 61. The face proof displays an allegorical woman at left, and a horse team pulling a plow through a field, and PMG comments "Thinning, Tears." The back proof displays an ornate design with detailed lathe work, and PMG comments "Thinning."