Mavic T519 vs Mavic A719

Hello everybody,

I have been given a chance of buying a pair of NOS Mavic T519 rims for
my touring bicycle at a very low price. I understand that these rims
have long been replaced by the T520 and currently the A719. The Mavic
site does not include info on older products so my questions:

- Is the A719 worth the extra cost or the T519 is more or less the
same rim?
- What are the differences?

Thank you in advance

Dimitris