cover 10c Dark Green 'First Design' (62B), well-centered, deep rich color, tied by boxed 'Paid' h.s. on pale buff cover to Nova Scotia, red 'Boston, Mass. Nov. 21' double circle d.s., matching 'United States' in double oval h.s., Canadian backstamps, without flap and stamp has small unobtrusive repairs, otherwise very fine appearing, scarce used on cover, with 1990 P.F. certificate, Scott retail $950.00+