Word: metalized
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Dates: during 1940-1949
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...Under wartime restrictions the panels are made of celotex and wallboard. But they could be made of any material. Having no weight-carrying walls, the Wiener-Sert system uses only about 50% of the structural lumber and 80% of the metal permitted...
...automatic weapons such as this one, ordnance planners long ago foresaw that the armed forces might shoot their way right through the available supply of copper, the key metal in brass cartridge cases. They were right. By this week some 70 companies were making cartridge cases of steel in all sizes...
Drawing starts with a round chunk or disk of steel which is cupped, then elon gated by a series of punches and dies which work the metal into cylindrical shape. The open end is trimmed or tapered, the base machined to shape. Between draws, which harden the steel, the cartridge case must be annealed. To protect it from corrosion and sparking it must also be varnish-sprayed and baked...
Shrubbery and tress have been imitated by dyed sheep's wool. The roads have been traced by cloth strapping and houses, placed exactly where ones now stand, have been built of wood and painted. Metal strips have been mailed down to resemble railroad tracks and strips of dark cloth represent the brooks and streams...
...Metal sheets to be cut, stamped and drilled for ships, planes and tanks can act as their own blueprints when coated with a photographic emulsion used in peacetime to make pictorial advertising displays...