Great work by our super sleuths! The Mercury FIAT Balilla, and several other nifty models, can be seen at The Car Model Museum's FIAT page. A word of caution: if perusing that site, you may wish to avert your eyes when the Type 186 Multipla appears on your screen.
Edit: as a second word of caution, the above link may be a rabbit hole.
Help to identify
Re: Help to identify
My other musings:
http://diecastcarpark.blogspot.com/
http://diecastcarpark.blogspot.com/
Re: Help to identify
That’s it! Thanks everybody.
Rod
Rod