Firth Brown Twist Drill Point Grinding Machines
Firth Brown Twist Drill Point Grinding Machines - Thos Firth and John Brown Ltd Sheffield
Picture No
13891689
Media ID
43797842
Size
2190px x 2954px
(1.3MB)
Credit
© Aviation Ancestry Collection / Mary Evans
Source
Flight magazine - February 18th 1937
Date
1937
