The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #294 ITALY Air Post Semi-Officials 1926 Trans-Polar Dirigible Flight "Norge" vignette, horizontal imperforate gutter tete-beche pair, one variety missing color (gray brown), the other with inverted frame, n.h., folded between stamps, v.f., rare ** | Price Realized $375.00 |
