One of three pieces that made up a medieval sword hanger. Circa 1500-1600.
I remember reading about sword hangers in John Carter of Mars. I had no idea what they were until now.
There is a record of similar on the British Museum’s finds website:
https://finds.org.uk/database/artefacts/record/id/727202
Reported to the finds liaison officer (FLO) in Salisbury.
A complete set would have looked like this: