Factory photo

Barely noticeable but there is a white 412 in the top right corner. I suspect this must be somewhere around 1985 or 1986.

Click the photo to enlarge: 

Ferrari Classiche

As per blog:

https://erwin400.blogspot.com/2015/09/ferrari-classiche-ferrari-400.html

The following page does show the two mentioned Ferrari 400's in more detail:

http://www.pmimage.ch/pmi/motorsport/ferrari/classiche/classiche.htm

In fact it also shows another one in white, it's a Ferrari 412 however: