Do yourself a favor, while honoring your grandfather's work, and take your time with this. Don't be in a hurry to cash out, as it may be interesting for you to see why he was so passionate about putting a collection together in the first place.
Find a reputable dealer to appraise the collection, but go there with a general knowledge of what you have.
A family history coin
this was given to my mom when she was born in 1930
It came in a bank issued cardboard and velvet box which I still have
Sorry, I don't have much baseball...
No Red Stripe
Since this is supposed to be coin related, I'll post my latest. Well, the reverse anyway. The obverse is so bloody corroded that you can't make out anything. It's graded PCGS Genuine - Environmental Damage, G Detail AMERICA
It's a 1793 Chain LC. I had the opportunity to buy a beautiful solid VF-30 from my local dealer in Albuquerque several years ago for $5600 (his price) but since I bought so much from him, he probably would have let me have it for $5100. I didn't have the money. As I've always wanted a Chain LC, I got this one a few weeks ago:
Edit to add: Nice die break, too!
I just did. Nice neonish green 1941 D Lincoln.