The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #490 SPAIN 1865 12c blue and rose, frame inverted, postally used, usual centering and color, signed Roig, CEM etc., with clear 2001 CEM (Commission de Expertos de Madrid) certificate (YT 67a) O Catalog #69a Catalog Value €1,100 | Price Realized $900.00 |
 | Lot #491 SPAIN 1865 12c blue and rose, frame inverted, postally used, well centered but extensively repaired, fine appearance, with APS certificate (YT 74a) O Catalog #76a Catalog Value €2,400 | Price Realized $550.00 |
 | Lot #492 SPAIN 1874 25c brown & yellow, top sheet margin imperf. single, yellow background inverted, n.h., v.f., unusual P Catalog #205P | Unsold |
 | Lot #493 SPAIN 1937 Portico, 1p blue and orange, center inverted, bright colors, lightly hinged (if at all), natural gum wrinkle, v.f., with APS cert. A rare stamp, only 200 printed (YT 596a) * Catalog #637a Catalog Value €450 | Unsold |
 | Lot #494 SPAIN 1937 Portico, 1p blue and orange, center inverted, imperf. single with large margins all around including portion of adjoining stamp at bottom, n.h., v.f., with APS certificate One of only a few imperforate inverted centers known ** Catalog #637a,var | Unsold |
 | 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 |
