i rewire any old lamp with a new polarized plug so the common goes to
the outer shell of an incandescent socket.
this may allow you more choices if needed.
if this is a mogul base bulb here is socket info:
http://catalogs.shoplocal.com/hdsupp...ircularid=7980
i saw a glass threaded lampshade on ebay.
expired at:
http://images.google.com/imgres?imgu...1%26safe%3Doff
also see ebay search: vintage lampshade ring thread
http://search-desc.ebay.com/search/s...saprchi=&sass=


Bob wrote:
Hello,

I came across an odd iron lamp with a downward facing socket which
likely uses a glass cone or globe shade. The shade would slip over the
exterior threads on the socket and fasten in place with a retaining
ring. The lamp works fine, but I have been unable to locate a shade or
retaining ring in local shops specializing in shades. They always know
what is needed but they don't have it.

Here is a link to a photo of the lamp... (I hope it works)

http://i144.photobucket.com/albums/r.../Oct2910-1.jpg

I'd be grateful for any assistance in locating a source for the shade &
ring (and also for the proper name of whatever type of lamp this is.)

Many thanks in advance.

... Bob