Auction: 177 - The Philatelic Collector's Series Sale
Lot: 437
Switzerland
1913, 50c Schweizerische Nationale Flugspende Herisau Aviation Meet
semi-official airmail, never hinged, a bright and fresh example, well-centered and choice, very fine. (SBK V, 600CHF)
Mint NH
Sold for
$160
Starting price
$120