Columbus, Ohio. Randy Pribble, a bus driver for the Pennsylvania Greyhound Lines, Incorporated, checking tires on a bus by thumping them before taking it out on a run. Since there are two tires on the back, the sound is the best way of telling if one of them is flat. September 1943

- Image ID: R1GXGJ
Columbus, Ohio. Randy Pribble, a bus driver for the Pennsylvania Greyhound Lines, Incorporated, checking tires on a bus by thumping them before taking it out on a run. Since there are two tires on the back, the sound is the best way of telling if one of them is flat. September 1943
Niday Picture Library / Alamy Stock Photo
Image ID: R1GXGJ