Lot
619 
(Gun & Powder) DuPont Smokeless Powder, multicolored illustrated ad design showing Short Billed Dowitcher, franked with 1903, 2¢ carmine tied by "Cincinnati, O. Apr 25, 1904" machine postmark, with additional advertising text on reverse, Extremely Fine, a lovely cover. Estimate $300 - 400.
Realized: $475