With the door on the 'wrong' side it would appear to be British.
Good point! I got to looking at the fender and decided it was not Boler/clone. But I didn't catch the door on the wrong side.
I was more interested in the rig it's self. Is that an attachment you cold buy, or was that an early conversion? And how were you suppose to get the boat down anyhow? Got to love the 60's (Not that I was there) but my dad has an obsession with vintage out door recreation equipment. And I myself find a fondness to the unique and often well made gadgets of the era.