File:Autograph of Heinrich Hertz.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:04, 1 December 2006		416 × 206 (9 KB)	commons>GeorgHH	{{Information \|Description=This is Heinrich Rudolf Hertz's autograph, from ''Oliver Heaviside: Sage in Solitude'' (ISBN 0-87942-238-6), p. 111. The image is reprinted courtesy of the Burndy Library (as stated in the credits in the back of the book, p. 318

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