Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - 1978-80, Wright Brothers 31c in vertical se-tenant pair, Philip Mazzei 40c, two pairs and single with significant color shifts and pair with practically omitted all offset colors, full OG, NH, VF, a common stamps are included, Est. $150-$200, Scott #C92a, C98 var