I came across this light bulb socket in a piece of furniture built in 1969 in America. It's 2014 and I'm in Britain so frankly I have no idea. It's right down inside the thing so this is the best photo I can get.
I've worked with American pieces before but I don't recognise this kind of fitting. It doesn't seem to be threaded as an Edison Screw bulb usually is. Any ideas?