Just saw the name "Akro Prizename" and had a flash of amused curiosity about that moment when the company managers decided to officially name them that.
Of course there was originally a contest where kids were supposed to come up with the name for the new corkscrew marbles. So the boxes _said_ "prize name" on them because they were delivering the contest rules. And then there was a winner of the contest, and the winning name was "Fire Opal".
But somewhere along the way back in 1930, the Akro guys decided to make the writing on the box be the official name of the marble, and the contest winning name wasn't used ... at least not for corkscrews.
Sooo ... I'm amused by whoever decided to name their marbles after their box.