The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #388 PERU 1919 Constitution, 5c brown & black, center inverted, also 5c blue & black, block of four, center double and inverted (also struck on back), plus yet another block of four, frame double, one inverted, fine-v.f.  *Catalog #220b,221b | Price Realized $180.00 |
