This looks like some type of cymbal mount or low-boy hi-hat part. Has DUPLEX on the lower part. The top washer is threaded and the felt is attached to it. Measures 5 3/4" high and the bottom piece with the logo on it is 1/2" diameter. Has 1/4-20" threads. If you can identify it can you point out to which piece of hardware it belongs? Many thanks!
Also: My earlier ID post from last week looking like a spider has been correctly ID'd as being twisted up rawhide strips! They each are crimped tightly to lengths of ball chain! Any ideas as to who, what, why?