2 Typed letter(s) signed by the author with typescript (p.c.) enclosures, 5 Typed letter(s) lacking signature, 1 Typed letter(s) signed by the author, 3 Autograph letter(s) S.
7 Typed letter(s) lacking signature, 1 Typed letter(s) signed by the author, 5 Autograph letter(s) signed by the hand of the author 1 Typed letter(s) signed by the author with typescript enclosures.