I have a rather nice vase table lamp which was given to me 10 years or so
ago. I have no idea where it originated from. Last night as I switched it on
there was a loud flash, some sparks and a noticeable absence of light
output. Stripping it down it appears that where the bulb plugs in is a brass
assembly holding a plastic fitting with two sprung loaded metal pins to
contact the bulb and the horizontal on/off switch plunger. One metal pin is
no longer sprung loaded so it looks like the spring underneath it broke or
melted.

Unscrewing the threaded brass rings which hold the lampshade holder and bulb
holder together I get to the aforementioned plastic bit into which the
electrical cable goes which is a sealed unit so no chance of getting inside
to fix it. On the underside is embossed "GM Série 100" so it looks like a
French manufacturer. It's also obviously an integral part of the whole brass
assembly which the bulb plugs into for this particular lamp and sized to fit
into the other bits. Other lamps I've checked have completely different
sizes and configurations of this bulb holder assembly bit so I can't just
swap out something from another lamp.

Google is no help in revealing who GM is other than apparently a large and
close to bankrupt car manufacturer.

Does anyone have any idea of where I might get a new part from or who GM is?
--
Dave Baker