COLOMBIA. Lot of (2) Banco del Estado. 10 Pesos, ND (1886). P-S451p1 & S451p2. Front & Back Proofs. PMG Choice Uncirculated 64 EPQ. The face proof displays Bolivar at left, an allegorical woman at right and a cherub at top center. Light green and red ink stand out on the face along with an ornate design. The back proof displays lovely lathe work and dark orange ink.