Tony,

The DA stamp is usually associated with a tyre at the beginning and end of a batch run. It is also howver used on a seconds tyre. AVON try to ensure that trade buyers highlight this DA stamp to the end buyers (US) but it appears that there are a few dodgy few out there who are trying to make a buck or two. DMillings have also adverties tyres that are over 5 years old, which within the tyre industry is the end of life of any tyre, especially if it has been left on the shelpf for quite a while.

Cheers

WB