Lot 1929
 
Airmail Semi-Official, 1877, 5¢ Buffalo Balloon (CL1 var.), impression in ultramarine on vertically laid paper. F.-V.F. believed to be from a trial printing of which only 14 are said to exist.
Estimate 1,000 - 1,500
Provenance: Schoendorf
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| Realized $1,700 |
