Beschreibung:

51, 1871 25c Ultramarine, used as postage due July 31, 1871 cover from Paris to San Juan, tied by negative "parrilla" handstamp with "1" due marking adjacent, franked on dispatch with France Spink-Maury #31, 37, 1867-70 40c pair and 20c, tied by "l" dotted star cancel with dispatch c.d.s. in center, red framed "P.P." and "London/Paid" transit c.d.s. alongside, some cover edge faults, of no importance for this, one of the very few France-Puerto Rico combination frankings recorded -1864 and 1871 issues are known applied as postage dues on genuine correspondence coming from abroad only-, signed Brun and Calves