This Is My GlasgowHeavy wear forming a lip on the side of a kerb on Balliol Lane in the Woodlands area of Glasgow. Such wear patterns are often put down to metal-rimmed cartwheels riding up onto the kerb while trying to manoeuvre down such narrow lanes. However, it's unclear whether such cartwheels would have been capable of wearing away solid stone.
getmisch
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David Ruffner