You want find much of them. This is SN001 of the 20" 50cm Ealing Beck. Normally Ealing made Cassegrains up to 40cm or 16". Specially for the University of Ghent Ealing made this 50cm. For some reasons the OTA was never installed on the mount.
The mount with the typical counterweight system.
The mirror cell with the baffle tube
Secondary mirror with the focusing motor.
Now the complete telescope is in our warehouse waiting for cleaning and installing new motors and controller. After this it