Wusthof 10” chefs knife (vintage?)

Here is a Wusthof 10” chef knife I cleaned up. Not sure of the age, maybe you can help me with that? Wusthof knives claim to be heat treated to 58 HRC. Not sure how long they’ve been doing that. They seem to be great kitchen knives and have been making them for more than 2 centuries! Thanks for watching!

[@craigbeins]

Good looking purple heart handle. Hope someone can give you more info on the knife.

[@Terrysknivesandmanstuff]

I really dig the old kitchen knives, man oh man that's a really nice one you got there brother 👍
Really great job on the handles!!
Oh yeah, just subscribed 👍

[@blademan175]

Thanks, I really appreciate it!