The De Bergue Patent Countersunk Riveting Process
The De Bergue Patent Countersunk Riveting Process - De Bergue's Patents Ltd
Picture No
13887898
Media ID
43673623
Size
2241px x 3171px
(953KB)
Credit
© Aviation Ancestry Collection / Mary Evans
Source
Aeroplane magazine - June 30th 1937
Date
1937





























