San Francisco : Architect and Engineer, Inc · leaf 65
tsCalaveras Pumicite Cement regarding which WilliamWallace Mein, president, said: Various puzzolanioPortland cements patterned after European types havebeen introduced into northern California markets. Asthe result of long experimental work, we have Intro-duced a Portland puzzolan cement derived… … Write to the Adver-tising Department,National Lead Co.,2240 - 24th Street, SanFrancisco, for a freeropy of Lets Lookat Paint, a new andauthoritative study oninterior painting.Many subjects of in-terest and assistanceto architects are pre-sented in this book. NATIONAL LEADCOMPANY Seattle - Portland…
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