X-339 WARNING STRIP Plate #1 Lower left with warning Inscription at bottom. VF NH. Post Office sheet counting number in lower right corner. (Image)

Est $50

7 DIFFERENT CENTENNIAL PRECANCELLED WARNING STRIPS Includes: 1 cent both sides PVA gum and left side Dex gum. 5 cent both sides with Dex gum. (Image)

11 DIFFERENT PRECANCELLED WARNING STRIPS Includes: Strips of 10 of: Y-586, Y-588, Y-590, Y-593 and Strips of 20 of: Y705, Y-708, Y-710, Y-711, Y-712, Y-787 (both top and bottom strips) All are NH (Image)

Y-591-D WARNING STRIP Double Impression in warning strip of 10. Scarce (Image)

Cat. Value: 500