Marble decoration and the terminology of British and foreign marbles : a handbook for students (1888)
Blagrove, George H · London : C. Lockwood · leaf 42
MOSAIC CEILINGS. 33 … forms the backing to the mosaic resting upon it. Theiron is concealed by a 2^-inch moulded marble soffit,having lewis-holes sunk in its upper face at from one footto eighteen inches apart. Brass bolts of |-inch diameterare let into thelewis-holes andrun with lead,and being passedthrough…
Marble · Decoration and ornament · Marble industry and trade
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