Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 374
Front \Mew. Doors Open. No. 3077DELEVATOR DOOR Rear View. Doors Closed. No. 3077BELEVATOR DOOR Rear View. Doors Partly Open. No. 3077CELEVATOR DOOR PATENTED TWO-THIRDS OPENING ELEVATOR DOORS. YVBOUGHT IROrtSILL. Patented Two-thirds Opening Elevator Door Mechanisms are manufactured ex-clusively by…
Building materials
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