描述
Signed FDC clipping & card (with an affixed photograph of Hertz), 3,25 x 3,5 (clipping) & 2,5 x 3,75 (card), the FDC clipping signed by James Franck in dark ink "James Franck" & the card signed by Gustav Ludwig Hertz in blue ink "Gustav Hertz", both attractively mounted (removable) for fine display with a composite photograph of the Franck-Hertz experiment (altogether 8,25 x 11,75 inch), the FDC with trimmed to the lower edge - overall in fine to very fine condition.
有关该人的更多信息
Profession:
(1882 & 1887 - 1964 & 1975) German physicists and Nobel laureates
Year of Birth: 1882
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