Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

1874: Cover to Amsterdam franked with 1870 50 m. ultramarine and 12 c. red brown pair, the former cancelled by Barcelona cds, the latter with "2" grid cancel, endorsed "via Genebra" and struck with boxed blue "PD", multiple manuscript accountancy notations, indistinct transit and Amsterdam arrival backstamp (22 Jan), pair with stain at top, else fine, a scarce franking to Holland during the de la Torre Regency.