Canada #411DP, 1963 $1 Canadian Exports large die proof, engraved in black on thick glossy (photographic?) paper, 94 x 76 mm, dated July 5, 1962 and signed by Yves Baril (engraver) with faint unburnished guidelines, very fine. Accompanied by 2009 Richard Gratton AIEP certificate. The only die proof of this stamp we can recall seeing. Estimate: $2500