COLOMBIA. 16 Pesos, 1847-RS. Bogota Mint. NGC AU-53 BN.KM-Pn6. Struck in copper. Variegated tone exists in the fields and almost no marks are seen when viewed with the unaided eye. A touch of central softness, entirely attributable to an incomplete strike, surely contributed to the assigned grade.NGC AU-53 BN.NGC UCID: 8WX8.