CHILE – 1927, Air Post – SOLD for US.$7,000

1927 Opening of Santiago-Valparaiso line by Sociedad Aerea de Navegacion Commercial,10c-2p surcharges on unissued O’Higgins stamp, complete set in blocks of four, mostly l.h., fine-v.f. and extremely rare in blocks, signed Sanabria (catalogue value for singles)