I seem to remember that you can tell somehow the approx age of the glass fitted to a car by some sort of code printed on it.
That way you can tell if its had any new glass fitted during its life.
Can anyone tell me if this is true,and if so what should i be looking for?
Got a 91' BMW M5 which needs glass and want to keep it looking as standard as poss (for the purists!!)
Thanks
Colin