Correspondence, consisting of fourteen TLS, five ALS, and a TL and AL, fragments, from Warren to Stein, 1950-1988, and seven TL, carbon, two ALS, photocopies, and two holograph drafts of letters from Stein to Warren, 1950-1988 and n.d.; and "Comments on R. P. W. and on Aspects of Our Friendship (Written Initially for Joseph Blottner)," written by Stein, typescript, photocopy, signed, with brief holograph annotations, n.d.