1959 5c St Lawrence Seaway with Inverted Centre, mint never hinged, with light fingerprint on gum as is often seen on this issue, due to the manipulation of the sheet, otherwise fresh and very fine. A scarce and sought after stamp with only 400 released, and a must have for any modern variety or inverted center collector.

Accompanied by a 2007 Richard Gratton AIEP certificate. (Image)

Unitrade $ 12,500

1959 5c St Lawrence Seaway with Inverted Centre, used with a light wavy line cancel, an extremely well centered stamp and one of the finest used examples known, extremely fine. This stamp is significantly scarcer in used condition than mint, with only 400 released, very few were actually used (only 17 are known on cover / card); it is therefore undervalued in Unitrade. A must have for the varieties collector, or person who only collects the very best quality.

B> Accompanied by a 1994 Greene Foundation certificate. (Image)

Unitrade $ 10,000