This is a first day issue envelope (3.75" x 6.5") with the T.S. Eliot stamp, which was postmarked Saint Louis, Mo Sep 26 1986 63155. The envelope has a drawing of a copper-colored cat dressed in a top hat, spats, and gloves, who is leaning on a cane. The text on the front reads: "T.S. Eliot Old Possum's Book of Practical Cats." The back of the envelope is stamped "Kribbs' Kover Jekyll Island Georgia." There is a sheet inside detailing Eliot's life and his poem, "The Naming of Cats." In excellent condition.