data and Non-free use rationale Description Centenary logo of the National Society of Metal Mechanics, a former British trade union Author or copyright owner...
(128 × 147 (9 KB)) - 19:36, 10 December 2018
Tom Curley, RIT NandE Vol18Num5 1986 Nov6 Complete.jpg...
(1,650 × 2,550 (5.04 MB)) - 21:29, 1 March 2022