Hamburger, Viktor
Happy New Year from the Spemann laboratory
Request to help Paul Weiss
Handwritten letter, 2 pages
Thank you letter for a recommendation for a graduate student
Handwritten letter, 2 pages
Unknown author, probably Hamburger but no signature
Regarding Dr. Rita Levi-Montalein and places to work
translation of Spemann's letter August 4, 1937
Handwritten letter, 1 page