1955 Alfa Romeo single seater ??

[PSk]

I didn't think Alfa Romeo were still making single seaters in '55, but my father sent me this photo:

Is it a special or works?, anybody know details?
Pete

[PSk]

Here is the ad: 1955 Alfa Romeo 1900 Monoposto Racer Single Seater by Fred Gosley.  for sale - PostWar Classics

I think it is a special built around a 1900 engine ... but I'm checking if there ever was such a thing factory built?

Pete

[dretceterini]

Not a factory effort as far as I am aware...

[pieter melissen]

in a similar vein as some of the early 1961 built South African specials using a downsized Giulia engine...