Category:Historical photographs of sulfur mines in Greece
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Media in category "Historical photographs of sulfur mines in Greece"
This category contains only the following file.
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ETH-BIB-Friedlaender-Milos, Schwefelmine Paläorheuma, 1923-Hs 0625a-0004-121.tif 3,376 × 2,005; 19.44 MB