Jet Age Museum at Staverton Airport might be interested in it if you’re looking to donate it somewhere. They have a strong interest in local aviation subjects and are within spitting distance of Cleeve Hill.

I’ve gone through the list of aircraft accidents I have for Gloucestershire and the only thing close PaulMcMillian mentioned previously:

19th Sept. ’39
Fairey Battle K9448, 207 Squadron
Flew into hill near Winchcombe.

There are a handful of others in ’39 and ’40 but they are centred around Aston Down, South Cerney or Stow-on-the-Wold so no-where near Cleeve Hill.

As others have stated though – that altimeters looks way to vintage to be from a Battle.