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Published Monthly CLEVELAND, MARCH, 1919 20 Cents a Copy Vol. 49, No. 3 Entered as second class matter, March 26, 1909, at the post office at Cleveland, Ohio under the act of March 8, 1879 $2.00 a Year BHIP RIVETS BOILER RIVETS to meet Lloyd’s Registry, American Bureau of Shipping, United States Government or any other specification and inspection U. S. Navy Standard Heads S. SEVERANCE MANUFACTURING CO. GLASSPORT, PA. (Suburb of Pittsburgh) ESTABLISHED 1828 r Contents, page 5 “Where to Buy,” page 144 Classified Ad rtisemehts: