The World Lapel Badges
The picture is from a race in 1906 with a Renault car. The badges in their hats are difficult to see but maybe it 's the old Renault badge or the Club/race-badge ACO. (The Grand Prix de l'Automobile Club Sarthe)
The Targa Florio race 1922. The photo is taken right before the race. The car is an Austro Daimler. The man right behind the car has the Austro Daimler badge in his cap.