Now, this is positively antique... so antique it was used to carry LP records. Don't know what an LP record is? Think of a CD, but bigger, made of vinyl, usually black, but the fancy ones would come in different colors, and many argue they sound much better than CDs. Of course, many don't even know what a CD is anymore because music now comes out of something called iPod.
Anyway, this vintage LP Record Carrying case featured classic DC characters Superman, Batman, Robin, Wonder Woman, Batgirl, Supergirl, Catwoman, and The Joker. It measured 13" x 13" x 4". Front and back had the characters, while the sides had their logos.
This is a pretty neat case though; especially if you take into consideration that at the time there were TONS of LP records featuring DC Comics characters, whether it was actual music, or narrated adventures, these were all over, and what better place to store them?