Yeah, the base came with it when i bought it way back when in Hollywood, CA. The guy told me if I wanted to get top of the line, here it was. He said after I tried it I wouldn't go back. Well it worked great. The handles (3) that I have are the original style. Then they went to the M2 which was a bigger bowl and heating element. Now they have a new one. You may not believe it but after going through an OZ you could still see through the glass, it doesn't get the bowl dirty like with fire...the bowl starts developing a real amber oil that i LOVE to collect with some fresh ground herb and blaze. The oil always smells so good (at least to me) and the oil always smells the same no matter what the price/quality of the herb. And it only takes a fraction of herb for a...glass of milk
The handle and bowl are the magic. I am wanting to have one of the bowls that came with it blown to fit on 18.8. I don't think that should be hard to do at all. Thinking of maybe trying to get in touch with the soulshinefamilyglass crew on etsy. Right now i'm expecting to get a Blue Dot tube from CollectorX cx and as soon as I can get the bowl made to fit it I will then retire this original base, but not the handles
. oh and to tell you the best part of my DD is that you can be in a room with 5 best friends (headz) and get blazed up and the room will not smell and will not be smoked up.
to answer your question no glass on glass that i know of, but i'm working on it!!
http://www.volatizer.com/html/the_volatizer.html