Stopwatch posters & prints

Timing the swimmer Anonymous

Stopwatch-Attendance Counter In Hand Anonymous

G Marzotto in a 4.1 Ferrari, taking part in the Mille Miglia, 1953 Unknown

Alfred Neubauer, Mercedes team manager, 1954 Unknown

Alfred Neubauer, c1954-c1955 Unknown

Experiment to calculate the speed of sound in air, Paris, 1822, (c1880) Robert Brown