Thanks for the info. As for the general value of these 3? Are they worth anything (I have no clue as how coins are graded)?

I have this since my childhood. They are mint in their tray. I was going to get rid of them today but I saw that maybe the 50 cent is worth something... Do I have the small or large beads version? What about the grading (the scratches and spots are on the plastic case not the coins)? 2021-05-10-0002...