New York City record and building trades directory (1892)
New York City Record Pub. Co · Park Row, N.Y. : New York City Record Pub. Co. · leaf 64
^0 y^H l|I/jPs:iil]5 %^::(X$ 3 m £ I w\A § SlfSfejfl H … :Af .-• No. .1.-, TOP, View ,: ; >,«-.••■ No. a. Bottom View;; Lenses, 2 in. and 3in. Square. S illustrated in the aboveT cuts, the lenses> in this, our new Square Opening Concfete Light, areround on top and square atthe bottom, each lens thus having a larger, distributive area■ than its…
Building · Building laws
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