Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - 1998, Space Shuttles, imperforate proofs of $3.20 in magenta and $11.75 in cyan, two vertical se-tenant pairs with horizontal gutter in the middle, printed on coated and uncoated paper, no gum as issued, NH, VF, C.v. $1,150 for pair on coated paper, the other pair is priced with ''-'', Est. $1,000-$1,200, Scott #3262 Pc, Pd