1917, 2¢ rose, type I, A.E.F. booklet pane single. Tied by "U.S. Army Postal Service, No. 7, Oct 10, 1917" duplex postmark on perforated letter card to Adamsville, O., purple A.E.F. censor handstamp, enclosure with some interesting content; cover with corner nick at lower left, otherwise Very Fine, an attractive example of the rare 2¢ A.E.F. booklet stamp on cover; with 2007 P.F. certificate. Scott No. 499f  Estimate $500 - 750. $0 (Image)