Rear cover from a Rogers valve pre-amp - possibly a 'Senior'

We have had this panel on a shelf for decades - I vaguely remember the preamp had a separate bronze top cover with curved corners and beige knobs with an octal connector to a separate poweramp block with similar wine red coloured base and grey painted HT/LT + output transformers.

The amp had B9A valves with possibly an EL84 output, sorry........this is the best I can remember !!

The condition is as seen in the photos - scratches/scrapes etc.. steel construction.

Thanks for looking