O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Ductile Iron Tread Supports
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.
O. K. Foundry Company, Inc.:
Klingle Mansion, Rock Creek Park, Washington D.C.