Bidspirit auction | Macao - Air Post stamps

Macao - Air Post stamps - 1936, ''Portugal'', black overprints or surcharge ''Aviao'' on 2a-15a, complete set in sheet margin blocks of four, a few marginal separations, full OG (slightly dried on 5a/6a brown), NH, VF, C.v. $230 as hinged singles, Est. $100-$150, Sc. #C1-6