The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #529 TURKEY 1876 10pa-25pi imperforate, six different, each with background inverted, v.f. * Catalog #53-58var | Price Realized $170.00 |
 | Lot #530 TURKEY 1876 20pa black and rose, perf. 13 1/2, background inverted, h.r., small tear at top, with 1999 APS cert. stating "background inverted variety produced by Corpi and Glavany during late 1800s" * Catalog #61var | Unsold |
 | Lot #531 TURKEY 1970 International Education Year, 130k ultramarine, pink and rose lilac Ultramarine, top sheet margin single, center inverted, also imperf. top sheet corner margin block of four, black double, one inverted, n.h., single stamp with minor mount disturbance on back, v.f., with APS certificates, stating "printer's waste" for the block  ** | Unsold |
 | Lot #532 TURKEY 1973 50th Anniversary of the Republic, 2.50L multicolored, misperforated variety, black color shifted to top and inverted, n.h., v.f., with 2011 PFC. This is a discovery copy (by Mr. Sagar), previously unrecorded invert ** Catalog #1957var | Price Realized $160.00 |
 | Lot #533 TURKEY 1998 150L International Day, center inverted and misplaced, the right single from the souvenir sheet of two, cancelled on piece. A spectacular variety, incorporating elements of both stamps, one of only two (!) reported, with 2006 APS certificate stating “2703b, incorporating elements of 2703a in inverted position, used on piece, genuine in all respects”, with a regular stamp and souvenir sheet included for comparison O | Unsold |
