Thanks for your help, when I finally work out how to add pictures I will add them to this conversation. What I can tell you is The click dual has holes for the winding the click up above the 4,6 & 8 numbers and a slot next to the three for turning the chimes on and off. From websites I have visited there are some disks that are close to what I have but they don't have the holes in the right places. Do I have to make the holes myself?
Regards
Andy