First Day Of Issue of Gettysburg Address U.S. postage stamp

6 1/2 x 3 5/8, cachet envelope with an illustration of President Abraham Lincoln at the lower left, with the imprint, "85th Anniversary Of Lincoln's Gettysburg Address," above. C.D.S., Gettysburg, Pa., Nov. 19, 1948, with a 3 cents blue, U.S. postage stamp, (A425) with vignette of President Abraham Lincoln, and a quotation from the Gettysburg Address. Stamped in black, First Day Of Issue. Addressed in pencil to Jane Donley, E. Broadway, Gettysburg, Pa. Very fine.