Auction: 12013 - The Collector's Series sale
Lot: 1694
x Switzerland 1913 Semi-Official Air Mails 50c. Aarau, 50c. Basel and 50c. Herisau, all used, the first with a few short perfs., otherwise fine. Zumstein I, II, V, 2,070 S.Frs. Estimate £ 250-300
Sold for
£210