Issue: #247 MJ
Last valuation update: 2024-06-19
First appearances: Marsden Van Dyke III, Chimp Manners
Creators: Dennis O'Neil, Dick Giordano, Julius Schwartz, Irv Novick
Characters: Batman, Alfred Pennyworth, Dick Grayson, James Gordon, Marsden Van Dyke III, Chimp Manners, Dr. Harris Blaine