File:Walter Grotrian 1920.jpg

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Walter_Grotrian_1920.jpg(186 × 217 pixels, file size: 11 KB, MIME type: image/jpeg)

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English: Walter Grotrian in 1920
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: Berliner Physiker u Chemiker 1920.jpg
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current09:03, 25 January 2023Thumbnail for version as of 09:03, 25 January 2023186 × 217 (11 KB)Jochen Burghardt (talk | contribs)File:Berliner Physiker u Chemiker 1920.jpg cropped 91 % horizontally, 79 % vertically using CropTool with lossless mode.

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