Locomotive lamp plug

[jhb171achill]

Gentlemen

Request for information.

Among the stuff stored with Cyril Fry’s collection - but which includes also much material that cannot be his (e.g. a pile of mouse-visited 1990s railway magazines) - is a large round headlamp, about nine inches diameter.

It is simply listed as “locomotive lamp”. It has a lamp bracket behind it of normal railway provenance, and a flexible cable at the end of which is this.

The thinking is that it is off a French, German or maybe Swiss locomotive, but there’s nothing else with it. It is possible that Fry collected it, but there is no proof of such; it may be nothing to do with him whatsoever. 

Does anyone know where such things might have been common, or can anyone throw any light on it?

If required I’ll try to get a pic of the lamp. There are no markings on it or in it.

[Glenderg]

The recesses and ramps suggest that there's a spring loaded locking mechanism, much like you would find on 110v transformers you might see on building sites (the yella ones). The distance between the pins and sheath is so big, might suggest serious juice going through. 500watt pit lamp? 

Edited March 3, 2020 by Glenderg

[jhb171achill]

20 minutes ago, Glenderg said:

The recesses and ramps suggest that there's a spring loaded locking mechanism, much like you would find on 110v transformers you might see on building sites (the yella ones). The distance between the pins and sheath is so big, might suggest serious juice going through. 500watt pit lamp? 

Any thoughts on a railway application?