British Transport Commission: British Waterways
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BTC/BW engineering drawings
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BTC/BW engineering drawings 202-767
BW177/2/6/1/348
"Watford District, Tring Section. Proposed concrete piling. Job number S/1246/Watford"
Site plans, cross sections and summary table for works at Linford, bridges 78, 82, 84, 85, 90, 91, 102, 103, 14, 108 and 109 and Simpson Aqueduct on the Grand union Canal
1960
BW177/2/6/1/348
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