DuPont Smokeless, multicolor illustrated design on 1906 cover showing Cowboy with Rifle on Galloping Horse, franked with 1903 2¢ tied by Birmingham, Ala. machine cancel with multicolor illustrated design showing Moose, Duck, Quail & Grouse on reverse, Extremely Fine and choice, one the finest covers in this collection, a similar cover sold for $2,600 + 10% buyer's premium in our April 2005 Sale. Estimate  $1,500 - 2,000. $0 (Image)

DuPont Smokeless, multicolor design on 1907 cover showing Sailors Loading Naval Gun, franked with 1903 2¢ tied by Sacramento, Cal. machine cancel with multicolor design showing Moose, Duck, Quail & Grouse on reverse, Extremely Fine, a stunning cover. Estimate  $1,000 - 1,500. $0 (Image)

DuPont Smokeless, multicolor design on 1907 cover showing Artilleryman, Horses & Caisson Wheel, franked with 1903 2¢ tied by Sacramento, Cal. machine cancel with multicolor design showing Moose, Duck, Quail & Grouse on reverse, small, unnoticeable cover tear at top, Very Fine, a lovely design. Estimate  $400 - 600. $0 (Image)

DuPont Smokeless Powder, multicolor design on 1902 cover showing Two Pointers in Action, franked with 1¢ Bureau tied by Cincinnati, O. machine cancel, tiny tear at top, mention for accuracy, `, Extremely Fine. Estimate  $300 - 400. $0 (Image)

DuPont Smokeless Powder, multicolor ad illustrated design on 1902 cover showing Quail on Rail Fence & Cornfield, bearing 2¢ bureau tied by "Columbus, Ohio Jul 12 1902" machine cancel to Washington C.H., Ohio, Extremely Fine. Estimate  $400 - 600. $0 (Image)

DuPont Smokeless Powder, multicolor illustrated design on 1903 cover showing Two Pointers in Action, bearing 2¢ bureau tied by Columbus Ohio Sep. 4 machine cancel to Bellefontaine Oh., F.-V.F. Estimate  $300 - 400. $0 (Image)

DuPont Smokeless Powder, multicolor design on 1904 cover showing Short Billed Dowitcher, franked with 1903 2¢ tied by Columbus, Ohio machine cancel, printed advertising text on reverse, Extremely Fine. Estimate  $200 - 300. $0 (Image)