Hi theboyscout,
My dad gave me two knives similar to what you show. He said one belonged to my grand dad that he kept in his vest pocket to trim the cigar, or trim a piece of harness. The other was his. hso mentioned never to open both blades at the same time, good counsel. I was fortunate that nothing happened but you will know immediately that it was not made to do. One has a crack in it, & I believe the scales to be mother of pearl, taking in account age, & wear. I still carry the smaller one to this day.
Enjoy what you have, perhaps just walking past a stall at a flea market, another will jump out at you.
As others have mentioned, RC we miss you. RIP