Currently for sale on Ebay from a seller in France, what looks to be an unused, pristine chrome two-lug M5, #13553167. The serial number puts its production date as 12/1972, which is smack dab in the middle of the M5’s production run but late enough to avoid the shutter issues that beset the earlier models. Seller claims everything works properly.
What would I pay for it? God only knows. I wouldn’t be interested in it as a collectible but as a user, so the box and all the supporting stuff would be irrelevant to me except insofar as it confirms the claim that the camera hasn’t been used much, but, of course, this potentially cuts both ways – lack of use for the last 45 years might leave you with a camera in need of service, and the one downside of M5 ownership is that M5 specific service isn’t cheap, usually double what you’d pay for a traditional M.
In any event, in my opinion, a good working M5 is about as good as you’ll get in a Leica M, and the chrome versions are the aesthetically more pleasing. Granted, not everyone agrees with me. Some Leicaphiles loathe the M5, which is their right. It’s my observation that the folks who hold the most negative opinions about the M5 are those who’ve never used one.