Here's more stuff I dug out of the cupboard, the holster is for my 38. Webley revolver, sadly the markings are all but invisible now so can't date it. ( I don't think the pistol lanyard has any real age to it)
The knife is a British naval Jack knife , it's stamped with what I think was the owners name.
The old whistle was made by metropolitan (made in England) and is attached to a chain with a leather fob with a small button hole.