I've just bought an old karrimor jaguar iv rucksack, I think it may be from the early 80's. It's made from what looks like a waterproof material and green in colour. It's also in fantastic condition, almost as new, except for the waist belt buckle. The one side is broken. Does anybody know where I might get one from, I'd prefer to use an original type buckle before changing it. Thanks for any help.