Canada 4c1858 Three pence red on soft horizontally ribbed paper, Imperforate, an extraordinary mint pair of this difficult printing, from Pane A Positions 10 & 20, sheet margin at right showing start of plate imprint and superb margins on other sides. Dazzling colour and sharp impression, showing prominent horizontal ribbed effect, possessing unusually FULL ORIGINAL GUM, a very rare trait for this particular printing. The upper stamp is flawless and in