This would be interesting to know about so many of our cameras. If only they were registered with a central body such as DVLA do with cars .... then again maybe not as the government would then be quick to find a way to tax camera usage (apart from VAT!)
I once bought a Pentax ES2 in a second hand shop (before the days of eBay) and found a name and address inside the case. I tracked down that person, who was the previous owner, had owned the camera for many years and had been around the world with it as he'd served in the Merchant Navy. I'd love to have list of all the places the camera has been, but the chap wasn't very forthcoming with information. Perhaps I'd phoned him in the middle of Coronation Street!