Parts books, workshop manuals, brochures, color samples, postcards, model cars ..... I collect them all.
Recently a question came up on the (now extinct) Forum on this site about the distance between the piston bottom and the top of the block, the deck clearance.
Because I didn't know the answer I went through the workshop manuals again. And there I came across this beautiful picture:
The 850's heart ! Apparently there is another Fiat 850 project in the Netherlands!