San Francisco, Calif. : Architect and Engineer Co · leaf 364
ppreciat-ed by owners of buildings, as insurancerates are thereby reduced. Our reinforced interlocking blocks arethe only actual interlocking blocks inthe market, both economical and durab e,combined with an attractive finish for theoutside, while the inside is plain andsmooth, and can be moulded… … Each interlocking stone is mouldedwith dove-tail shaped keys at the rate ofone-eighth to each inch, which rest uponone another, thus utilizing its own weightto fortify construction. Mr. G. A. Peterson, the manager of theInterlocking Stone Company, personallysuperintended the erection of the…
Architecture · Building
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