Conowingo Dam and Power House near Bel Air and Havre de Grace

Front:
2- Conowingo Dam and Power House near Bel Air and Havre de Grace, Md. IB-H2191

Back:
THE HARRY P. CANN & BRO. CO., BALTIMORE, MD. GENUINE CURTEICH-CHICAGO "C.T. ART-COLORTONE" POST CARD (REG. U.S. PAT. OFF.) PLACE