I have a pair of rubbered steel backed, like tank idlers, tyres of 5' 1" (155cms) diameter by 4-3/4" (12cms) width at steel band tapering to 4 inches (10cms) and 1-1/2 (3.8cms) depth. Original thought and planned use was for fitting to front wheels of my engine but a little too narrow and thin to use. Maybe OK for a steam tractor but ideal for putting on an iron wheeled living van or even good for four inch or six inch miniature. £150-00 each or £275-00 the pair. P.M. for any other details.