Canada 91857 Seven and one half pence green on medium wove paper, imperforate, an attractive used single with ample to large margins, tied by a partially legible four ring '37' (Quebec) cancel to small piece, neat Paid London JY 6 59 postmark in red at left; pencil signed by expert Peter Holcombe on reverse. An exceptional example mailed during the last days of the Pence era, arriving in the United Kingdom the week Province of Canada adopted decimal currency,