British Transport Commission: British Waterways
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Records relating to all divisions
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BTC/BW engineering drawings
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BTC/BW engineering drawings 202-767
BW177/2/6/1/238
"Watford District, Apsley Section. proposed concrete piling ..."
Site plans and sections showing work north of lock 77, Watford and between lock 71, Hunton and bridge 165, Grove Mill, with summary tables
1959
BW177/2/6/1/238
These records are available immediately for research
2 sheets