Avery Machine No 669 For Compression
Avery Machine No 669 For Compression, Bending and Shearing Tests - W and T Avery Ltd
Picture No
13887196
Media ID
43676357
Size
2058px x 2728px
(903KB)
Credit
© Aviation Ancestry Collection / Mary Evans
Source
Flight magazine - December 20th 1917
Date
1917
