Kossoy Collection of Poland; U.S. & Worldwide Stamps
September 11-13, 2012
| Images | Description | Current Bid |
 | Lot #1260 SWITZERLAND Air Post 1936 40c on 90c, vermilion surcharge, block of four, used with central postmark, full original gum, v.f., signed Zumstein, with 1997 Renggli certificate,  Catalog #C32a Catalog Value $3,200 | Unsold |
 | Lot #1261 SWITZERLAND Air Post 1936 40c on 90c, vermilion surcharge, used with additional franking on cover from Zurich to Vienna, v.f., signed Bloch (Zum.24a)  Catalog #C25a Catalog Value SFr 1,300 | Price Realized $325.00 |
