House ad for Detective Comics #359 (January 1967); printed in Batman #189 (February 1967)
Comic cover art: pencils by Carmine Infantino, inks by Murphy Anderson, letters by Ira Schnapp
Ad designed and lettered by Ira Schnapp
*Yes, they really did call her that, both in the comic book...
Panels from "Batgirl's Costume Cut-Ups!" in Detective Comics #371 (January 1968), script by Gardner Fox, pencils by Gil Kane, inks by Sid Greene
...and on the TV series: