Lot
911 
(Guns, Shells & Powder) Hercules Powder, multicolored all over illustrated "Infallible" Powder design on 1920 cover showing Ducks Landing in a Marsh, franked with 2¢ Washington-Franklin tied by Denver, Colo. machine cancel, small trademark Herculean Figure with Club on flap, Extremely Fine, a choice example of this rare design.Estimate $200 - 300.
Realized: $220