Batman #4 (DC, 1940). CGC VF- 7.5 Off-white pages. Third appearance | Lot #31175 | Heritage Auctions
Batman #2 (DC, 1940). This outstanding issue features the second | Lot #32029 | Heritage Auctions
Batman 23, coverless,1940!Hollywood stars/Joker!(see pics) | Comic Books - Golden Age / HipComic
Detective Comics 1000 Bruce Timm 1940's Joker Variant - Etsy
Batman (1940) - 291
La primera aparición del Joker en 1940, tal vez el más importante de los villanos principales fue el p… | Batman comic books, Comic book artwork, Batman and batgirl
Joker (character) - Wikipedia
The Great Comic Book Heroes: The Joker's first appearance in Batman #1, 1940
Batman Comic Sells for $2 Million – The Hollywood Reporter
The Great Comic Book Heroes: The Joker's first appearance in Batman #1, 1940
The Joker was not always 'twisted' in the comics - Polygon