Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 335
Fic. 6. PRISM CANOPY IX POSITION Fig. 7. COURT OF FLAT BUILDING WITH PRISM CANOPIES OVER WINDOWS Canopies can be made to fold back as easily as a canvas awning. The advan-tages of this type are many. Prisms are more easily cleaned and kept free from snow. Luxfer Prism Skylights (Fig. 8)…
Building materials
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