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

text: 1950 Italian Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Nino Farina Alfa Romeo 80 2:51:17.4 3
Dorino Serafini Alberto Ascari Ferrari 80 + 1:18.6 6
Luigi Fagioli Alfa Romeo 80 + 1:35.6 5
Louis Rosier Talbot-Lago - Talbot 75 + 5 Laps 13
Philippe Étancelin Talbot-Lago - Talbot 75 + 5 Laps 16
Toulo de Graffenried Maserati 72 + 8 Laps 17
Peter Whitehead Ferrari 72 + 8 Laps 18
David Murray Maserati 56 Gearbox 24
Cuth Harrison ERA 51 Radiator 21
Raymond Sommer Talbot-Lago - Talbot 48 Gearbox 8
Guy Mairesse Talbot-Lago - Talbot 42 Oil Pipe 11
Franco Rol Maserati 39 Retirement 9

Question: In the 1950 Italian Grand Prix when the driver was Juan Manuel Fangio and the lap count is less than 39, what is the highest starting grid?

Question: If grid is less than 7, laps are greater than 17 and time/retirement is +1:35.6, who is the constructor of the 1950 Italian Grand Prix?