File:PSM V39 D767 Section of a bessemer converter.jpg
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current | 20:08, 18 October 2015 | 983 × 1,728 (301 KB) | Ineuw | Cleaned image and improved contrast | |
21:56, 27 November 2010 | 1,001 × 1,724 (383 KB) | Ineuw | {{Information |Description = Section of a Bessemer converter |Source = http://en.wikisource.org /wiki/Page:Popular_Science_Monthly_Volume_39.djvu/767 |Date = 1891 |Author = Unknown |Permission = {{PD-old}} |other_ver |