The Akro Ace is a real company name. Yes. But what Akro called Ace is a white-based marble which is supposed to have an orange glow when backlit. It's like Pelt's Acme Realer. I don't think it lasted very long. And now the marbles are usually sorted as Prize Names because people don't think to check for orange glow inside or because the white is so dense that it didn't glow like it was suppose to.
And then decades later, collectors took Akro's Ace name and put it on a different type of marble.
One of the little glitches of the mibology.
Many collectors do recognize the actual Akro Ace. But using the Ace name for marbles like Fire's is still very popular, so I don't fight it ... much. However, when asked, I will point out that Akro sold marbles like Fire's first one in Moss Agate boxes.
This is an Akro Moss Agate box. It doesn't happen to have the blue and white version, but you see the family resemblance with Fire's marble.