Move over Superman.  I got this!!

Supergirl's Greatest Victory! ACTION COMICS  Vol.1,  No.262,  March 1960;  Cover Art:  Curt Swan,  Stan Kaye,  Ira Schnapp;  Writer:  Robert Bernstein;  Penciler:  Wayne Boring;  Inker:  Stan Kaye Witnessing the landing of a Kryptonite meteor,  Supergirl muses about the substance’s dangerous effects,  and is determined to develop…

SUPERGIRL in “The Forbidden Fortress of Solitude!”

Don't Mess with Super-Horse! Especially on #NationalPetDay today!  Superman finds out the hard way.  And there's more.....  Supergirl is horribly disfigured from an encounter with Jak-Thal at the Miss Cosmos contest in the previous issue, and wears a mask until she can find a way…