1903, 10¢ pale red brown. Tied by straight line "Postage Due" handstamp on 1904 incoming Inca Mining Co. corner card cover from Carabaya, Peru to Concord N.H., franked with Peru 2c black & red, pair + 5c blue tied by Carabaya postmarks, N.Y. 10cts due handstamp and receiving backstamp; cover with clipped corner, F.-V.F., a very scarce provisional postage due usage. Scott No. 307  Estimate $100 - 150. $0 (Image)

1903, 10¢ pale red brown. O.g., never hinged, large margins, fresh with bold color and sharp impression, Very Fine to Extremely Fine; with 2008 P.S.E. Graded certificate (VF-XF 85, SMQ $250). Scott No. 307  $175. $0 (Image)