Cowbell holder for Gon Bops timbale stand needed

Hi, does anyone have a spare cowbell adapter for a Gon Bops timbale stand, 1970's model?
You remove a cap from the chrome plated steel tube that is the main part of the stand, insert the adpater and tighten it with a screw from the side. I have the stand but the bell holder is missing.
Any help would be greatly appreciated!
You remove a cap from the chrome plated steel tube that is the main part of the stand, insert the adpater and tighten it with a screw from the side. I have the stand but the bell holder is missing.
Any help would be greatly appreciated!