Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Portuguese Colonies - Macao - 1936, 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, Scott #C1-6