Lot 820 — Nova Scotia 1851 six pence yellow green Heraldic, unused ng July 24, 2020January 15, 2015 by Sparks Auctions Lot 820 Nova Scotia #4 1851 6d yellow green Heraldic, unused (no gum), with decent, even margins, very fine. Accompanied by a 2014 Greene Foundation certificate. Unitrade CV$6,500.