I'm not sure what model they were originally for but they are genuine Alfa Romeo wheels, when I cross referenced the part number via Eper it just states that they were an accessory but it doesn't specify which model. I've tried one on my car and the centre bore is a little tight so if fitting them to a 33 you would need to enlarge the centre bore slightly and would also need some spacers.
The wheels are maked "Alfa Romeo" and "A. Benzoni & C. BWA"
These are very rare and its likely they are the only set in the UK, ideal for a P4 if you want to fit larger brakes but keep the OEM look.
Pretty good nick and ready to use but would benefit from a repaint if you're really fussy. One minor scrape on one wheel, the rest are fine. More pictures to follow if there is any interest.
Sensible offers please...