File:PSM V51 D167 Various considerations in gun barrel design.png
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current | 18:52, 20 May 2016 | ![]() | 998 × 457 (121 KB) | Ineuw | Cleaned image and improved contrast |
07:17, 30 April 2011 | ![]() | 1,749 × 790 (190 KB) | Ineuw | {{Information |Description = Various considerations in gun barrel design |Source = [http://www.archive.org/details/popularsciencemo51newy Popular Science Monthly Volume 51] |Date = 1897 |Author = Unknown |Permission = |
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