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Batman Adventures
#12
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Marvel Comics · CGC 8.0 · Universal Blue
Batman Adventures #12 (Marvel Comics) — 1st Harley Quinn Ap. CGC 8.0.
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Batman Adventures #12, published by Marvel Comics. Listing notes: 1st Harley Quinn Ap. The listing does not state the publication year.
Graded CGC 8.0.
This copy is encapsulated by CGC at 8.0 on a Universal Blue label. The holder is intact and has not been cracked, re-sealed or altered.
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What is Batman Adventures #12 worth? See the Batman Adventures #12 price guide (3 copies on sale by grade).
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Background on Batman Adventures, the grade and what drives the price.
Key issues
The Batman Adventures #12 (September 1993) is Harley Quinn's first appearance in comics, a year after her television debut in Batman: The Animated Series. It is the most valuable comic of the 1990s after New Mutants #98 and a standard Modern Age key. Because it was printed in large numbers, the value sits almost entirely in 9.8 copies, newsstand copies and the scarcer second printing.
Updated Oct 11, 2026
Characters
Harley Quinn's first comic-book appearance is The Batman Adventures #12, cover-dated September 1993, by Kelley Puckett, Mike Parobeck and Rick Burchett, in the tie-in series to Batman: The Animated Series. She was created by Paul Dini and Bruce Timm for the television episode “Joker's Favor”, first broadcast in September 1992, a year before she reached print.
Updated Oct 11, 2026
AuctionsConfirmed
According to The Beat's report from New York Comic Con, ICv2's Milton Greipp estimated at Thursday's ICv2 White Paper that comics sales in comic shops are up 19% so far in 2026, with graphic novels up 28%. The Beat notes this comes against even bigger growth last year.
Oct 9, 2026
Values
A comic book values price guide gives a reference figure for a title, issue and grade, but it is not what a particular copy will sell for. The real value comes from the exact condition of your copy and what comparable copies have recently sold for.
Updated Oct 11, 2026
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