manufacturer date timing belts

I remember there have been once a description and photos from timing belts, but cannot find anymore. could someone post the link to this thread please? those numbers on the belts says something about manufacturer date and also following numbers during production.
any help would be appreciated

 

thank you vincenzo

 

would you put on belts that where produced in 2011, stored in a dark dry room?

 

that is also my meaning vincenzo,
but often when I order for eample parts for other cars from my distributor I get belts even 3 or 4 years old and once I got a writing that up to 6 years old belts is no problem.
but I doubt ! ! !