
http://i.imgur.com/o0WdD2V.jpg
The "dust ring" is probably the felt of the 12" turntable, which is only partly covered by the 10" disc. The Exhibition reproducer seems to be missing.bingchen1 wrote: Also there is a metal rod and dust ring, I'm guessing it's missing something but i'm not sure what.
http://i.imgur.com/m7Hmjrk.jpg
Speed adjustment with missing knob?bingchen1 wrote:It almost looks like a tiny 10-12 cm turn table is taken out, leaving a second small dust circle and a metal rod in the middle.