1851, Prince Albert, 6 d slate violet, laid paper, exceptionally fresh with good to large margins and a neat central target cancel, very fine, cert. Oliva (SG/Scott 2, £1.300 / $1,750)
3; Übersee A-Z; CANADA; Canada (Britische Kolonien)
3; Overseas A-Z; CANADA; Canada (Britische Kolonien)