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Viktor Hamburger to Unclear, 1934
Handwritten
Viktor Hamburger to Unclear, 1933
Handwritten
Johannes Holtfreter to Viktor Hamburger, June 7, 1959
Programmatic letter on Holtfretrer's conception to embryology. On recent experimental results on egg polarity.
Dorothea Rudnick to Viktor Hamburger, Year Unkown
Handwritten
Dorothea Rudnick to Viktor Hamburger, Year Unkown
Handwritten
Viktor Hamburger to Unclear, 1934
Handwritten
Viktor Hamburger to Unclear, 1933
Handwritten
Josef Spek to Viktor Hamburger, 1947
Handwritten
Viktor Hamburger to Unclear, 1933
Handwritten
Josef Spek to Viktor Hamburger, 1946
Handwritten
Gunther Stent to Viktor Hamburger, 1983
Handwritten
Viktor Hamburger to Unclear, 1935
Handwritten

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