1917, 3¢ dark violet, type II, Imperf Horizontally. Wide margins and deep color, neatly tied by "Grand Haven, Mich, May 7, 1922" machine postmark on fresh corner card cover to New York City; cover reduced at left otherwise, Very Fine, an exceedingly rare on cover usage and the only on cover example certified by the Philatelic Foundation; with 1982 P.F. certificate. Scott No. 502c  Estimate $1,500 - 2,000. $0 (Image)