The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #431 RUSSIA 1889 7k blue, groundwork inverted, with clear inverted crown at bottom, illegible cancellation, well centered, with a small 3mm abrasion at right, tiny corner perf. crease, otherwise fine, one of the only two known (!) used examples known, ex-Mikulski, with his 2003 certificate, O Catalog #50b Catalog Value $ 12,500 | Price Realized $9,500.00 |
