Physical Laboratory, Lehigh University

Front:
LEC CO Physical Laboratory, Lehigh University, South Bethlehem, Pa. THE

Back:
Dresden. Nº A.10947 Published by The American News Company, New York, Leipzig, Berlin, LEIPZIG BERLIN DRESDEN LITHO-CHROMEX TRADE-MARK. GERMANY. NORTHAMPTON United States and Island Possession, Cuba, Canada and For all other Countries Two Cents