Canada, 1851, Prince Albert, 6d slate violet, laid paper, light circular handstamp cancel, large beautifully balanced margins all around, deep and wonderfully rich color, an Extremely Fine gem, an outstanding used stamp; with 1980 B.P.A., 1987 V.G. Greene & 2004 P.F. certificates. SG No. 2 £1,200 ($1,942). Scott No. 2  $1,750. $0 (Image)

Canada, 1851, Prince Albert, 6d slate violet, laid paper, neat central target cancel, ample to mostly large margins, deep rich color and strong impression, Extremely Fine, choice so nice; with 2006 P.F. certificate. SG No. 2 £1,200 ($1,942). Scott No. 2  $1,750. $0 (Image)

Canada, 1851, Prince Albert, 6d slate violet, laid paper, margins large to shaving frameline at top, strong bold color, tied by target handstamp on cover addressed to historian and horticulturist Francais Parkman in Boston, Mass., matching "Montreal, Ja 4, 1855" cds, Very Fine. SG No. 2. Scott No. 2  Estimate $600 - 800. $0 (Image)