Holy crap, I've never seen another! And the answer I was looking for was “a freakishly early type-3, like one of the first few years”
This one must be a later one as the manifold is the cast aluminum but the carb was one piece (as in nothing moved) and the plastic linkage is intact. I'm still freaked out with the no thermostat blower shroud, even the lowly beetle had one and that oil cooler adapter to mount a steel one sideways is just crazy.
The engine case code is “O” making it a pre 1962 model year type-3, but there was no such thing as a type-3 in that era only VW's brand new fifteen-hundreds!
Now the fifteen-hundreds were the upscale models and while beetles had 36/40h (both were 1200ccs) the engines in the new models were a whopping 1500cc's, as an option a Bus could be special ordered with a similar 1500cc (hence the heads could of fit variant or from a special order bus) else they had 1200cc engines.
Of course chaos ensued a few years later when beetles/bus/ghia started shipping with 1500cc single port engines that had a different head (angled port). Names were changed, history was rewritten, bodies disappeared, and the warren commission was formed.
Good job with googly googly!