Waller "Phoenix" double-gate valve cutaway travelling salesman's model

Waller Phoenix' double-gate valve cutaway travelling salesman's

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Waller Phoenix' double-gate valve cutaway travelling salesman's
Science Museum Group
© The Board of Trustees of the Science Museum

Waller "Phoenix" double-gate valve cutaway travelling salesman's model, 1930.

Details

Category:
Gas Industry
Object Number:
1979-539
type:
valve, model
credit:
Clark, G.