Talk:British ten pence coin

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[edit] "The 10p test" for car tyre tread

The large version of the 10p had use as a gauge for car tyre tread. At one time the legal minimum was 1mm, and the ring of dots on the faces of a 10p was that distance from the edge. Therefore, if it was possible to insert a 10p coin into a tread groove and hide any of the dots, there was enough tread. There was even a Public Information Film about it.

The change to 1.6mm minimum tread depth, and the reduction in size of the 10p, obsoleted the "10p test".--EmleyMoor 08:25, 26 September 2007 (UTC)