Who was the first comic book detective?
Dick Tracey was the first comic book detective.
There were none. Comic books began in 1933 with Famous Funnies #1, and the early ones only reprinted comic strips from the newspapers. In the later 1930s, comic books started printing new stories, but most of them were standard detective stories, westerns, or humor. The first comic book superhero was Superman, who first appeared in Action Comics #1, dated June 1938.
Superman was the world's first SUPERHERO (Created in 1932, sold to DC in 1938, first appearance Action Comics #1, published April 18, 1938). Superman was NOT the world's first comic book hero. The Crimson Avenger was the first MASKED CRIMEFIGHTER (Detective Comics #20 October 1938). Batman appeared LATER (Detective Comics #27, May 1939).
What is the value of an original 1939 1st edition 27 detective comic book that is is near perfect condition?
Comic books were not even invented in 1920. They were first invented in 1934, with "Famous Funnies Series 1 #1". But in the 30's and 40's the comic book series "Action Comics" were the most popular. If you are asking for just 1 comic, then I think either Detective Comics #27, #38 or #40 OR Action Comics #1, #7 or #23.
1994 .......... Actually, the first Sonic the Hedgehog comic book was released in the Fall of 1991 as a 16 page one shot by Sega. This particular comic is also smaller than a regular comic book. It is considered rare with less than 1500 copies estimated to exist. In new condition it commands hundreds of dollars. Roughly the same time in 1991, but most likely a month or two after the mini comic was released…