I just received this selection from RARE-T;

https://rare-t.com/collections/psa-jsa-beckett-signed-memorabilia-f...

Before pulling the trigger on this 1939 Canadian World Wide Gum Ted William rookie card, at almost 50k I wanted to get some opinions.

Everything checks out with PSA as being 100% authentic and that it is indeed the highest grade given for this card at a 6.

My problem is that it’s so rare, I can’t find any records of past sales to compare pricing with, but from what I’m seeing this value isn’t impossible. I’m sure I can negotiate with them a little but how high should I go, and is this one a good investment??