SG2. 1851.
6d Slate-violet.
Immaculate cross-border envelope to 'Wyoming County, N.Y.' bearing a lovely 6d slate-violet tied by a black and a blue 'target' and with 'DUNNVILLE AU 16 1851' dispatch and '10' 'PAID' and 'CANADA' handstamps, all in red.
David Brandon Certificate.
Scarce And Very Desireable.