English: Sketch of a flash lock on the river Thames between Whitchurch-On-Thames and Pangbourne around 1786, showing method of winching a barge up over a weir. Flash locks were common on the Thames above Staines.
2008-07-06 17:59 CMallwitz 1498×946× (210314 bytes) Sketch of a flash lock on the river Thames between Whitchurch-On-Thames and Pangbourne around 1786, showing method of winching a barge up over a weir. Flash locks were common on the Thames above Staines.