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Title: Example of modern Horstmann single-train controller for stre [Go to resource]
Description: Example of modern Horstmann single-train controller for street lights, detachable from gas-cock and fitted with special solar dial permitting central winding, with winding key, no.B.12412 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Horstmann Gear Co. (maker) Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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