British Transport Commission: British Waterways
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Trent and Mersey Canal
BW177/6/11/3/4
"Detail of Reinforcement to Lifting Beams: Thirlwood Upper Lock"
Description
Sectional elevation of lifting beam with cross section and details. Lime Street Chambers, Liverpool1. Trent and Mersey Canal.
Date
September 1956
Reference code
BW177/6/11/3/4
Extent & medium
1 Sheet