[Locomotive Breath]

Well they probably wanted to file off the firing pin (or whatever) to make sure the weapon could never be fired again. Can you even get a cartridge/round for that thing?

[Eric in the Ozarks]

Its an antique and part of their heritage. Not that anyone in the UK would understand that.

[gate2wire]

“Can you even get a cartridge/round for that thing?”

Am hardly an expert on ammunition, but here goes.
One of mine has a couple clips which allow the revolver to fire .45ACP.