Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 424
e in a central rotating position bya lower pivot and trolley lock plate, both of which can be released by one operation, andpermit of the folded wings being moved to one side, leaving an unobstructed passage.Provide renewable floor socket which will permit of the renewal of the wearing… … ENUPHYLL BRONZE CONSTRUCTION
Building materials
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