[ronbryan]

I have looked at a functionally similar 'Duodial' turns counter in my spares box and on that one, the stationary part of the counter mechanism is just pegged to the panel by a stand-off washer with a broad peg on the counter side and a smaller round peg on the panel side. The rotating knob is fixed to the mechanism by a circlip.

If you have removed the knob, then it seems to me that there is no need to remove the counter body to remove the panel, as the connection is merely via the ten turn pot shaft, which you have disconnected.

I'll post some photos of the Duodial turns counter underside shortly.

Ron