Auction: 177 - The Philatelic Collector's Series Sale
Lot: 436
Switzerland
1913, 50c Schweizerische Nationale Flugspende Bern Aviation Meet
semi-official airmail, never hinged, beautifully-centered amidst balanced margins, exceptionally fresh, very fine; with 1991 Rellstab certificate. (SBK III, CHF 700)
Mint NH
Sold for
$180
Starting price
$120