File:Porcelain insulators, factory Fortepan 73047.jpg
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![File:Porcelain insulators, factory Fortepan 73047.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Porcelain_insulators%2C_factory_Fortepan_73047.jpg/443px-Porcelain_insulators%2C_factory_Fortepan_73047.jpg?20160822083548)
Size of this preview: 443 × 600 pixels. Other resolutions: 177 × 240 pixels | 355 × 480 pixels | 567 × 768 pixels | 757 × 1,024 pixels | 1,513 × 2,048 pixels | 6,179 × 8,362 pixels.
Original file (6,179 × 8,362 pixels, file size: 10.08 MB, MIME type: image/jpeg)