The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #495 SPAIN 1937 1p blue and orange, center inverted, used with additional ranking on registered cover to Urriza (Navarra), v.f., with arrival pmk, signed Roig, with 2007 Comex certificate. A fabulous inverted center rarity on cover, stated to be one of only two (!) known  Catalog #637a | Unsold |
