Glass Plate Negatives Series 2 - 1909 - 1959

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Diagram, "Stirling" boiler during erection from catalogue

Diagram, "Stirling" boiler section from catalogue

Diagram, "Watt" Cornish engine for slide

Diagram, angles for twisted bends

Diagram, Decrease in typhoid cases in London 1900, 1937

Diagram, electric centrifugal pump, Rickmansworth Bay

Diagram, Heston Road 12" meter with garden watering peaks

Diagram, Heston Road 12" meter with garden watering peaks

Diagram, key to abbreviations used for slides

Diagram, M.W.B. boiler statistics

Diagram, pumping working expenses

Diagram, sources of supply D/19/5

Diagram, sources of supply D19B/5

Diagram, Thames catchment area

Diagram, Thames catchment area, from Thames conservatory coloured plan

Diagrams etc. A.B.C. copies of drawing water supply, source to customer

Diagrams etc. A.B.C. copies of drawing water supply, source to customer

Diagrams etc. A.B.C. copies of drawing water supply, source to customer

Diagrams etc. A.R.P. plant, Kempton Park, Barn Elms bomb crater No.6/15

Diagrams etc. abstraction from River Thames and total supply from all sources

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