Here’s some more structural-looking ones

http://cgi.ebay.co.uk/260785943404

This looks like the one that was sold on eBay previously. If so it appears to have been machined out of solid and the face against the wall is not flat but has machined recesses. However looks the right way round as pictured:confused: so perhaps the presentation face should have the machined recesses :confused:

http://www.freewebs.com/lamps016/

about the 15th picture down :rolleyes:

nice site with all sorts of aircraft bulbs 🙂

Generic part, there seem to be LOTS of these around – wonder how many were made and where :rolleyes: Air Ministry crown so before 1944.

Yes, Lancaster there are three on the fuselage centre line red, amber and green. Wouln’t be suprised if they were on the Vulcan as well and everything in between. I have got one where the ring has had the part number machined off has been engraved with the later stores ref 5CX/3467

Get a bulb and wire it up 😎

Merkle, i really hope this extra “publicity” helps you to move it on to someone who will appreciate it.

You could try electrolysis I have had good results on rusty steel – even brought out the markings on a lightly rusted crash axe where none could be seen to start with.