1901: 6C 1750 GRAN SPORT SERIE V COUPE-SPIDER AERODINAMICO ZAGATO, 1931
10901: ALFA ROMEO GT 1300 JUNIOR, 1969
100901: MODEL GE GASOLINE 5-PASSENGER TOURING, 1911
1901 : it should be Alfa Romeo, but I just fin a 8C 2300 aerodinamico Zagato. Strange
10901 : Zagato ?
100901 : may I have a hint ?
Thanks
1901: Alfa Romeo is correct.
10901: 10.701 and 10.801 were Bertone...Zagato is around 103.300. I have more than 400 cars under Bertone and given the fact that I'm updating my list daily, they seem to be even more...but that's another Bertone!
100.901: Very, very close to your 100.801: White (2)!