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October, 1926 MARINE REVi nw 67 Positive Caulked Joint. Rivet Pitch 6-inch Centers. licensed. Cummings Combination Counter & Telltale Officially approved as conforming to Emergency Fleet Technical Order No. 104 IMMEDIATE DELIVERIES £) Continuous Rotary eight figure large numera counter with no trouble some reciprocating parts Countershaft geared down | to 10 of main shaft. ; Positive counter with adjustable friction-drive telltale, 9-inch dial. Same hardened steel counter as used by U. S. navy on all destroyers, battleships, etc. : To determine R. P. M. hold watch in one hand and telltale on zero with other hand, release and stop after interval of 60 seconds. We also furnish driving mechanism from main shaft to counter. Cummings Machine Works 255 Atlantic Ave. BOSTON, U.S.A. Channel Steel—World’s Strongest Hulls Recently Completed All Steel Channel Dump Scow for Frontenac Dredging Co., Toronto, Ont. Canadian Locomotive Company, Canadian Representatives Designed and Patented by Louis Henley, Rome, N. Y., sole owner of the United States and Canadian Patents, by whom designs will be furnished and builders W. G. Bartenfeld, Great Lakes Representative, Lorain, Ohio Channel Steel Barge Co., Rome, N. Y. Built by Kingston, Ont. Canada Look into the Reilly Heater Note how little space it occupies; how easily in- spected; how each coil is shaped like a spring, pre- venting expansion strains on the joint. There are many other advantages of the Reilly Heater that you will be interested in reading about. Bulletin 511 tells the story. Send for a copy. The Griscom-Russell Company Dept. N, 285 Madison Avenue, li NEW YORK ! Please mention MARINE REVIEW when writing to Advertisers