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Wendel Bollman
Truss Bridge - Wikipedia, the Free Encyclopedia
A Context for Common Historic Bridge Types
BOLLMAN TRUSS RAILROAD BRIDGE Page 1 United States Department of the Interior, National Park Service______National Register of Historic Places Registration Form
A Context for Common Historic Bridge Types
Maryland Transportation Transformed, 1800-1900
Historic Highway Bridges in Maryland: 1631-1960: Historic Context Report
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