U.S. and Worldwide; Zemstvo
November 6-7, 2013 and November 13, 2013
| Images | Description | Current Bid |
 | Lot #1418 SWITZERLAND Air Post 1919 30c yellow brown and pale green, part Zurich cancel, v.f. and rare used, with 1997 Renggli cert. (Zu.1, SFr 1,800) O Catalog #C1 Catalog Value $1,250 | Unsold |
 | Lot #1419 SWITZERLAND Air Post 1919 50c green, two flown covers, each with additional franking, one registered from Versoix to Basel, other from Lausanne to Lucerne, redirected to Zurich, v.f. (Zu.2, SFr 650)  Catalog #C2 | Price Realized $190.00 |
