The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #247 GUINEA Air Post 1962 Anti-Malaria, mosquito inverted, 25f-100f, set of three perforated singles, also 25f, 50f (2) and 100f in "normal" imperf. interpanneau blocks of four, n.h., v.f.  **Catalog #C29-31var | Price Realized $700.00 |
 | Lot #248 GUINEA Air Post 1962 Anti-Malaria, 100f souvenir sheet, mosquito and marginal insignia inverted, n.h., v.f. ** Catalog #C31avar | Unsold |
 | Lot #249 GUINEA Air Post 1964 100f Kennedy, die proof in issued color, die sunk on glazed card, center inverted, v.f. P Catalog #C56Pvar | Unsold |
 | Lot #250 GUINEA Air Post 1965 ICY, 100f imperf. trial color proof in green and orange, center inverted and misplaced, vertical pair, n.h., v.f. ** Catalog #C75var | Unsold |
