Unfortunately, not really worth much. I used to dabble in collecting old lures. Can't remember the names as I'm not in front of my specs, but the top and bottom lures are most valuable.......IF they're in good condition. Nowadays, everyone is looking for mint or pristine condition in older wooden lures.
You can toss out the Hula Popper as those come a dime a dozen, plus this one is missing the rubber end.
Top one would be your best bet if it wasn't so badly cracked.
Clean up the middle and bottom lures and they might be worth 10 - 12 bucks each.
Best thing to do is clean them all up and get a nice display case. Now you have a really cool homage to grandpa.
Just my