How old may this Tetenal Vario paper be?

[Nitroplait]

Someone gifted me 5 unopened boxes of Tetenal paper. Mix of RC and fiber.
No expiry date, only batch numbers - from an estate so gift-giver have no idea of age.

I won't have my darkroom up and running before early next year, so I can't test if they are any good at the moment.

Before I get too excited, I wouldn't mind knowing how old they may be to align expectations.
Anyone have a guess from the packaging?

If you have used Tetenal paper - then how should I expect it to behave (if it is still good) - Similar to Ilford MG RC & fiber?

 

[subsole]

I don't know how old it is but it's an excellent fiber based paper.
It used to be rebadged Agfa MCC paper and later Kentmere Fineprint VC.

 

[Nitroplait]

I don't know how old it is but it's an excellent fiber based paper.
It used to be rebadged Agfa MCC paper and later Kentmere Fineprint VC.

Thanks.