Detective Comics (1937 1st Series) #388 VF/NM
First 15-cent cover-price. Cover by Irv Novick. "Public Luna-Tic Number One!," script by John Broome, pencils by Bob Brown, inks by Joe Giella; The Joker steals an anti-gravity device and uses it to facilitate his robberies and to trap Batman and Robin. "Surprise! This'll Kill You!," script by Frank Robbins, pencils by Gil Kane, inks by Murphy Anderson; A fake Batman appears in this Batgirl story, as well as a costume party with people dressed as Superman, the Flash, and Green Lantern. Letters of comment from comics writers Tony Isabella and Donald F. McGregor. 36 pgs., full color. $0.15. Cover price $0.15.