PPco Scope unknown mount

[303 Collector]

Sorry for the delay in replying.
Thank you for your replies.

The scope is an Aldis 4 and is marked "Aldis Brothers Birmingham No 154799"
The range drum is marked 1 to 6 and it has the standard post and crosswire reticule.
There do not appear to be any other marks on the scope or mount.
The scope is detachable in the same way as described earlier by Peter.

I'm no engineer but the actual mount on the rifle looks a lot harder to manufacture
than the scope rings. The mount is soldered and screwed to the charger bridge at the
rear and soldered and screwed to the receiver ring at the front. It actually shoots very well.
I will take some more pictures if anyone is interested.