Heat and Light Plant and Mechanical Laboratory, University of Pennsylvania

Front:
11. HEAT AND LIGHT PLANT AND MECHANICAL LABORATORY, UNIVERSITY OF PENNSYLVANIA, 30 HOUSTON CLUB, PHILADELPHIA, PA,

Back:
ONE CENT FOR UNITED STATES AND ISLAND POSSES- SIONS, CUBA, CANADA AND MEXICO. POSTAL CARD-CARTE POSTALE Authorized by Act of Congress, May 19, 1898. ELSEWHERE E. MOEBIUS, PHOTOTYPE, CAMDEN. N. J.