ALS signed “Ted,” one page, 5.5 x 8.5, on a printed sketch of The Cat in the Hat. In full: “You wasted a stamp. I sent my check last week. It was very pleasant to receive your letter, however. And gratifying to learn that you were the guy who bought a Seuss book this month. I had been wondering just who it was. Very Best! Ted.” In fine condition. Accompanied by the original mailing envelope postmarked April 27, 1979. RRAuction COA.