Infinitely grateful to everyone, thank you very much for the interesting professional discussion.
I want to attach a series of photos from the Internet about version 340 # 40, managed by Alberto Ascari "GP-C-04" at the Grand Prix des Nations, in Geneva, as well as Piero Taruffi,#4. https://www.oldracingcars.com/f1/1950/).
1. Grand Prix des Nations. Geneva, Alberto Ascari, # 40 / (125-C-04)
2. Gran Premio de Penya Rhin Pedralbes, Piero Taruffi, # 4 / (125-C-04)