The request for the history certificate is in the mail, now to wait a few months for it to be processed and sent to my grandma.
The value the mom and pop store gave me was for $400-$450. The only half of the box that exists is the half that I have, the other one has been missing since at least as long as she has had it. Grandma wanted to sell it if it was really valuable, but I was able to get put on a payment plan to keep it in the family