1¢ green, 2¢ carmine, U.S. Automatic Vending Co. Pocket Type 4-1, pair of pockets, each with one and two respectively, all stamps with U.S.A.V. type I perforations, without inscriptions and numbered "43" and "44" on back, Very Fine and scarce pair. Scott No. 343, 344  $600+. $0 (Image)