Grandpa had good taste, The fixed blades I dont think your Grandfather had a hand in the morseth stamped knife, this needs to go on Bernard Levines Forum, it may turn out to be a valuable knife-or it may not! put it on and you'll find out, the other fixed blade is a Richardson, he has his unique style and finishes his blades like that, he also scrimshaws them as well, they are a popular knife.
The Case pocket knives...some of them have great Stag...nice knives...others here have a better know-how on them, the Case knives with the "dots" on the Ricaso started at 1970...1970 had ten dots, 1971 had 9 dots, 1972 had 8 dots...and so on until they changed the stamping again, again the guys here will realy help you.
I envy you, my Grandfathers didnt have knives, and I wish....I wish so bad that they did, and that I could have their knife with me now.
Dont let any of these go until you found out a lot more about them, I dont know if it is my very limited experience? but a morseth knife brings in money-and thats why there are fakes out there too... Learn about that by putting it up in Bernards forum.
Good luck, and please keep us informed...... we would like to follow you with what you learn here...as we ( or should I say I ) will learn with you as well

Edit, dont look past the value of the Sheath as well, if the Morseth is good, it will be worth a lot more with it,s original sheath, and a Morseth collector probably will pay nice money for a sheath to complete the set ( which you may have ).
The sheath with the ricahrdson looks original to the knife, if you google Richardson fixed blade knife...you will find out more about them.