San Francisco : Architect and Engineer, Inc · leaf 144
companying illustration shows clearly just why protection is so badlyneeded on the front of all stair treads, whether the stairs be made ofwood, cast iron, cement, marble, steel, etc. In considering any of the various steel sash fire doors, safetytreads, etc., it is advisable to adopt the… … TYPE OF STEEL SASH USED FOR LOFT BUILDINGS 108 THK AKCHITIOCT AND KNGINKKR
Architecture · Building
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
