TLS, one page, 5.25 x 3, personal letterhead, no date [circa 1964]. Steinbeck writes to Mr. Natre. In part: “I have your charming letter of January 12th and I deeply regret that concentration on some, to me, very important work makes it impossible for me to acknowledge your letter in the manner it deserves....” Matted and framed to an overall size of 7.5 x 6. The reverse of the frame bears the handwritten date 6/15/64. In very good condition, with toning, mild soiling, and slight brush to last name. RRAuction COA.