Saarinen knoll international 164  

Hello everybody,
I am new on this forum, I've been lurking for quite sometimes and finally decided to post.

I just won a saarinen arabescato table, round 137cm centimeter from knoll in auctions and I'd like to have more information about it.
The table is written "Knoll International 164" at the bottom of the foot but there is no tag or information on the marble.
However, the marble top looks authentic to me, and is in really good state, with some light scratches and dents.
I removed the top to transport it, and it has 5 holes on it(1 in the middle) which looks fine.
My question is:
Is it possible to identify from what year this table comes from(approximately)
And is that normal that there is no tag on the marble top?
I will post pics later today or tommorow when there will be more lights.
Thanks in advance