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AFFIDAVIT CITY OF PITTSBURGH
SS
STATE OF PENNSYLVANIA BEFORE ME, a Notary Public in and for the State of
Pennsylvania personally appeared ^jgv^9 Bgby'ckwho stated under due oath of law as follows:
am a librarian for the Carnegie library in Pittsburgh, Pennsylvania. The Carnegie Library contains original volumes of the publications and proceedings of the Air Hygiene Foundation of America, Inc., the Industrial Hygiene Foundation of America, Inc., and the Industrial Health Foundation, Inc.
Attached hereto are ^> pages which are true and correct copies of the publications and proceedings of
These documents are in such condition as to raise no suspicion concerning their authenticity; these documents are presently in
AFFIDAVIT - PAGE 1 OF 2 LEGALXAFF714 - November 9, 1992
the archives of the Science and Technology Section of the Carnegie Library, Pittsburgh, Pennsylvania; these documents have been in existence for twenty (20) or more years.
Affiant, being first duly sworn, deposes and says:
That the foregoing statements are true.
SUBSCRIBED AND SWORN TO BEFORE ME on this the of November, 1992.
NOTARY PUBLIC
My Commission Expires:
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day
AFFIDAVIT - PAGE 2 OF 2 IEGAI\AFF714 - Noveirber 9, 1992
TRANSACTIONS of
TWELFTH ANNUAL MEETING
of INDUSTRIAL HYGIENE FOUNDATION OF AMERICA, INC.
NOVEMBER 20, 1947
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