Auction Series 257-264 in Zurich Day 2

1858 (Dec): 1 d. slate-blue (shades), the select group of 9 items with five large margined single examples cancelled in blue or black, with vertical pairs in deep shade cancelled by complete PIURA straight line in black and a pair in a pale shade cancelled OTUSCO in red; with horizontal pairs in different shades each cancelled ARICA / VAPOR in black.
Catalogue 257: EUROPE & OVERSEAS