187 MINISTRY OF SUPPLY RUBBER IS SCARCE SUBMIT TYRES FOR REPLACEMENT as soon as they are smooth TOO LATE FOR RETREADING A tyre as far gone as this can never be retreaded. Worn beyond repair, fit only for the scrap heap, it is a 100% DEAD LOSS AS A TYRE RETREADING A tyre worn smooth like this can be retreaded with less than half the rubber required to make a new tyre. OVER 50% RUBBER SAVED PER TYRE If in doubt about the state of your tyres consult an Author- ised Tyre Depot. They will tell you whether you should hand in your tyres at once or if you can run them a few more miles.