. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . FIG. 172. KEYSTONE UNION. FIG. 173. SECTIONAL VIEW KEYSTONE UNION. MALLEABLE 171. SIZE _ _ _ INCHES i f i f 1 n H 2 21 3 H 4 PLAIN ______ GALVANIZED . _ _ . . _ EACH. . _ EACH . . .20 .27 . .34 .50 . . . KEYSTONE UNIONS -Fig. 172. SIZE ________ _ . _ _ INCHES i f i i 1 H n 2 2i 3 PLAIN . _ _ _ _TINNED _______ ____

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. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . FIG. 172. KEYSTONE UNION. FIG. 173. SECTIONAL VIEW KEYSTONE UNION. MALLEABLE 171. SIZE _ _ _ INCHES i f i f 1 n H 2 21 3 H 4 PLAIN ______ GALVANIZED . _ _ . . _ EACH. . _ EACH . . .20 .27 . .34 .50 . . . KEYSTONE UNIONS -Fig. 172. SIZE ________ _ . _ _ INCHES i f i i 1 H n 2 2i 3 PLAIN . _ _ _ _TINNED _______ _____ EACH_____ EACH_____ EACH . . . . . . . .

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Keywords: ., bookcentury1800, bookdecade1890, bookidillustratedc, bookyear1894