My partner was given a Malay Lantaka (picture attached) by her Father who acquired it in the 1960s when he was a diplomat in Malaysia. It doesn't appear to have been disabled in any way. It's about 20mm bore, bronze muzzle loader with a wick hole at the back end.
We obviously don't intend to fire it, only have it on display as a momento/family heirloom.
Are we breaking the law by having it? If so, what would we need to do to make it legal? Or, if the answer is "it depends" who would be the best person/organisation to get more information from?
Many thanks in advance. Outback.