Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 330
vcE?TiCAL srcTion. PLAn or 5TAT)0;iACy lowcp /i/Mr VOIGTMANN STANDARD AIJTGMATIC FIRE WINDOW Continued on Next Page VOIGTMANN & COMPANY 260 METAL WINDOWS, DOORS, ETC. 135 degrees, releasing the sash, which will then swing shut and lock. The lock is of our own design,having but three parts, all…
Building materials
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