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Posted by Chriscase on Monday, January 05, 2009 at 10:30:12 :
In Reply to: I think the record for the number of materials... posted by Gordon on Monday, January 05, 2009 at 05:18:35 :
Brass was reserved for cartridges, aluminum for aircraft. Zinc was even used for plating US pennies, which had steel cores.
Like much other WDX parts, the zinc for tags was in the pipeline at the time.