I wonder if it's someone's attempt to duplicate the Adventurer or just a custom job loosely based on it? The slant six has me wondering if it's the real thing. By the 60s just about every show car would have had a V-8.
Well of course anything could have been done to it in the last 30+ years, but it looks like it was driven around, which is also what Nicky told me -- the previous owner, in Beverly Hills, drove the thing, when he became unable to drive, it parked, then was 'got rid of' by who know who. It went to a yard and Nicky's landlord picked it up. If true, it implies it wasn't running, or dusty, or whatever. It's just a little green car (stylish though it is), not some "obvious" Rolls Royce. Most people would have no clue if they haven't 'seen one on TV'.