Valpo british Postal Service

During most of the XIX century, there was a quite active british postal agency in Valparaiso whose postmarks are looked after by philately aficionados from all over the world as an example of the PREPHILATELIC & PHILATELIC POSTMARK USED IN VALPARAISO 1846-1881
Most pre postal mail via Cape Horn went by way of transshipment at Valparaiso. Companies such as the Pacific Steam Navigation Company had a mailing service set since 1840 with its characteristic P postmark.