AP Historical Hard Drive 2008
EN_00946420_2448
A line of drop hammers shown operating at the Glenn Martin Plant, Baltimore, MD., March 6, 1941. These drop hammers form the contours of airplane parts. Softened or annealed duralium is the metal used, and the parts are later heat-treated of restore their hardness. Whole sections of engine cowlings, for example, are broken out this way. (AP Photo)
10288
Minimum price 50PLN
1941-03-06
ASSOCIATED PRESS/East News
Associated Press
3925405
1,72MB
25cm x 20cm przy 300dpi
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