1883 J. D. J. Kelly in Aug. 445/2 Diminutive three-tonners..were cruising.
a1944 K. Douglas (1946) 38 This necessitated sweating about to find a three-tonner or a tank to tow us out.
1971 B. W. Aldiss 39 We marched off the platform in good order..and transferred our kit to a line of three-tonners standing waiting for us outside the station.