440 Robert Brooke Papers Relating To The Chesapeake And Delaware Canal Image: NYPL's Public Domain Archive Public Domain Search}

Contract record book

Plan of the aqueduct over Elk Creek Ch: & Del. Canal feeder

Public domain scan of a architecture diagram, settlement map, plan, or drawing, free to use, no copyright restrictions - Picryl description.

South, or downstream elevation of the Aqueduct over Elk Creek

Picryl description: Public domain image of an arch bridge, stone structure, architecture, free to use, no copyright restrictions.

Transverse section of the aqueduct over Elk Creek

Public domain scan of an architecture diagram, architectural drawing, building plan, or design, free to use, no copyright restrictions - Picryl description.

Elevation of the aqueduct over the head of Cow Run and Transverse section

Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description