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OCR Page 1 of 2June 2nd,1930.
Dr. James E. Ives,
United States Public Bealth Service,
Room 1-123, Bldg.,
16 Seventh St. S.W.
Washingtoa, D.C.
Dear Dr. Ives:
The United States Radium Corporation and the
Radium Dial Company (Radium Luminous Corporation, Standard Chemical
Company) have supplied the American watch manufacturers with
practically all of the luminous material which they have used during
the past 15 or 16 years, so far as we know. It is possible that
small lots of material have been supplied by foreign minfacturors,
but the amount of this material used I am sure has been snall.
There was a time when we used mesothorium together with
radium in the manufacture of our luminous matorial, and those custom-
ers to whom we sold during this period were aware of this fact.
lie cannot speak for the activities of our competitors
along this line.
Very truly yours,
Vice President.
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