Table:
text: 1950 Italian Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Piero Taruffi Juan Manuel Fangio Alfa Romeo 34 Engine 7
Pierre Levegh Talbot-Lago - Talbot 29 Gearbox 20
Juan Manuel Fangio Alfa Romeo 23 Gearbox 1
Johnny Claes Talbot-Lago - Talbot 22 Overheating 22
Alberto Ascari Ferrari 21 Engine 2
Clemente Biondetti Ferrari - Jaguar 17 Engine 25
Henri Louveau Talbot-Lago - Talbot 16 Brakes 16
Franco Comotti Maserati - Milano 15 Retirement 26
Maurice Trintignant Simca - Gordini 13 Water Pipe 12
Louis Chiron Maserati 13 Oil Pressure 19
Consalvo Sanesi Alfa Romeo 11 Engine 4
Robert Manzon Simca - Gordini 7 Transmission 10
Prince Bira Maserati 1 Engine 15
Paul Pietsch Maserati 0 Engine 27
Felice Bonetto Milano -Speluzzi 0 Non Starter 23

Question: What was the smallest starting grid at the 1950 Italian Grand Prix in Prince Bira's 1950 American Championship Car Racing?