Banjos were huge in the U.K. at one point, as witness -
Glen's British banjo collection:
https://glensbritishbanjocollection.weebly.com/
and of course R. Kipling's
The Song of the Banjo:
https://www.poemhunter.com/poem/the-song-of-the-banjo/
There ought to be a ton of British-made banjos languishing in antique shops across the land.