With respect to my Otto/Alfa Monza question, there's a Getty image and a reference to "Alfa Romeo Type 8C 2300 parked in front of Otto Zipper's Precision Motor Car service area in Santa Monica, California".
I won't post the actual image here as I don't know whether that's allowed, but here's the link:
https://www.gettyimages.com.au/detai...hoto/150191277
Cheers!
Glen