(Hercules Powder). Design on reverse of 1905 cover showing The "Infallible" Girls, franked with 1903 2¢ tied by "Palestine, Tex. Received" machine cancel, with illustrated gun case on front, Very Fine. Estimate  $75 - 100. $0 (Image)

(Hercules Powder). "Infallible" or "Ballistite" (Powders), exceptional multicolor design on 1913 cover showing Trap Shooting Competition, franked with 2¢ Washington-Franklin tied on reverse by "Pittsburgh, Pa." machine cancel, two insignificant spindle holes, Very Fine. Estimate  $150 - 200. $0 (Image)