That must be the picture you had mentioned elsewhere.
Clues are the windshield height and lack of 'peanut' turn indicators.
www.thesamba.com/vw/archives/info/semaphores.php
So... 1961 or earlier. I have (or had, it's unclear) a 1958 Canadian Beetle. It was Baja'd so the build plate is gone but it has semaphore pockets and the big back winbdow.
It will be for sale (with the front and rear hoods) in a week, if your interested.