They certainly do. There are a few on this forum, too. Try posting this over in the "what is it" forum. Here's a website to help you ID them:
http://www.nia.org/general/index.htm
Yooper
Yep I collect them. Those are CD 162s probably used around 1920. What colors are they? Book value for aqua pieces are around a dollar, but if they are darker green, amber, Peacock blue, or jade milk glass, they can command over $100 and possibly over $1000. Try some Oxalic acid. That should clean that black train smoke right off. Thats a pretty nice braket too. Ive seen brackets simular to that one sell for $10-$12.