Electricity Building - Pan American Exposition in Buffalo

Front:
OFFICIAL SOUVENIR MAILING CADN ELECTRICITY BUILDING COPYRIGHT 1901 BY THE NIAGARA ENVELOPE MFY.,BUFFALO.N.Y. BUFFALO NY. USA 1901 PAN AMERICAN

Back:
PRIVATE MAILING CARD. AUTHORIZED BY ACT OF CONGRESS MAY 19,1898. (“POSTAL CARD.- CARTE POSTALE.”)