Horydczak Collection: Search Results

2 results containing "United States--Maryland--Silver Hill."

Larger image available anywhere (2) | Larger image available only at the Library of Congress | Not Digitized |

#gallery thc1995007587/PP Potomac Electric Power Co. substations. Silver Hill, Maryland substation I	#gallery thc1995007588/PP Potomac Electric Power Co. substations. Silver Hill, Maryland substation II