Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 776
D7C t-< Fig. RECORDER No. 2 COMBINED WITHOFFICE REGULATOR50 inches high, 20 inches wide |. RECORDER COMBINED WITH No. iOFFICE REGULATOR70 inches high, 23 inches wide for indoor work is No. i6, and if encasedin iron or brass conduit, should be of rubbercovered quality. For open work,…
Building materials
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