The Mahendra Sagar Collection of Inverted Centers
October 5-6, 2011
| Images | Description | Current Bid |
 | Lot #179 BRITISH COMMONWEALTH CANADA 1959 St. Lawrence Seaway, 5c red & blue center inverted, top right corner sheet-margin block of four, plate block position, bright fresh colors on pristine white paper, never hinged, usual post office pad staple holes in top selvage, v.f. A showpiece with 1983 PFC, approximately 400 copies exist, making this plate block a premier Canadian rarity. As was the policy of the Canadian Post Office during this time period, sheets of stamps supplied to the various post offices had the selvage inscriptions (and plate numbers) trimmed off to reduce the number of broken panes in post office stocks (caused by collector requests). The only way collectors could obtain plate number blocks were from sheets that were supplied through the Philatelic Service of the post office. The famous Seaway Invert found its way to the public through purchases by customers at regular post office windows, so no traditional inscription plate blocks. The accepted plate block positions would be blank corner sheet margin blocks, such as the on  **Catalog #387a Catalog Value $ 64,000 | Price Realized $27,000.00 |
 | Lot #180 BRITISH COMMONWEALTH CANADA 1959 St. Lawrence Seaway, 5c red and blue, center inverted, perfectly centered single tied to cover by Ottawa 1959 cds, sent to Vancouver, cover with small edge faults at top as expected on this purely commercial usage, v.f. Only 16 covers or cards with the Seaway Invert have been recorded, this is one of only three examples with a cds postmark, with 2002 David Brandon certificate (Unitrade 387a)  Catalog #387a Catalog Value $ 25,000 | Price Realized $10,000.00 |
 | Lot #181 BRITISH COMMONWEALTH CANADA 1991 Provincial Normal School, Truro, N.S., $2 brown and multicolored, inverted inscriptions, single error se-tenant with brown cutting guide invert gutter at bottom (from the Hamilton Find), the error with tab and partial design at top, n.h., v.f. Only ten gutter inverts known, with 2000 APS certificate (Unitrade 1376b,1376vii) ** Catalog #1376b Catalog Value $ 22,000 | Price Realized $9,500.00 |
