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Key Issue Comics:
Detective Comics 400, 1st Appearance of Man-Bat
Why Detective Comics 400 is a Key Issue Comic
400 issues in – that’s quite a milestone for Detective Comics, which was started way back in 1937.
For this monumental issue, Batman gets a new foe – Man-Bat!
Dr. Kirk Langstrom was a scientist who developed a serum that could give humans bat senses.
Hoping to cure his progressive deafness, Dr. Langstrom tests it on himself, but is turned into a ravaging Man-Bat.
Later, Batman and Man-Bat team up to fight off the Blackout Gang (first appearance), but their partnership is short-lived and Man-Bat mysteriously disappears.
He shows up later in DC #402 where he and Batman face off as enemies.
The cover of Detective Comics #400 is unique in that it features Batman, Robin, and Batgirl, where previous issues left out Batgirl.
Guide to Detective Comics #400 Values
Man-Bat may not be as memorable as The Joker or Bane, but he has become a lasting DC villain who still makes appearances today.
During the 1970s, Man-Bat was popular enough to get his own two issue series, illustrated by Steve Ditko.
Depending on the grade, DC #400 could be worth anywhere from $100 to over $3,000. The highest recent sale for DC #400 was $3,700 in 2013, which had a CGC grade of 9.8 (the highest grade for this comic).
Values of non-certified issues:
- VG: $20
- FN: $80
- VF: $150
- VF/NM: $200
- NM or better: contact us
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Related Pages on Sell My Comic Books
Neal Adams art feature on Sell My Comic Art (opens in a new window)
Detective Comics Values #1-100
Most valuable comic book list from the Bronze Age
Detective Comics #400 on the 100 Hot Comics List
Detective #233 is also a Hot Comic
Detective Comics #359 Buyer's Guide and #359 on the 100 Hot Comics List
Other Batman-Related Price Guides on SMCB
- Batman Comic Book #1-100
- Batman Comic Values #101-200
- Batman #181 Price Guide
- Batman #232 Price Guide
- Batman #47 on the Hot Comics List
- Batman #59 on the Hot Comics List
- Batman #121 on the Hot Comics List
- Batman #139 on the Hot Comics List
- Batman #171 on the Hot Comics List
- Batman #181 on the Hot Comics List
- Batman #189 on the Hot Comics List
- Batman #232 on the Hot Comics List
- Batman #251 on the Hot Comics List
- Batman Adventures #12 on the Hot Comics List
- Batman Villains List
- Batman vs Penguin Comics
- Detective Comics #1-100
- Detective Comics #101-200
- Detective Comics #359 Price Guide
- Detective Comics #400 Price Guide
- Detective Comics #140 on the Hot Comics List
- Detective Comics #233 on the Hot Comics List
- Detective Comics #359 on the Hot Comics List
- Detective Comics #400 on the Hot Comics List
- Detective Comics #880 on the Hot Comics List
- Harley Quinn Comic Values
- Harley Quinn #1 on the Hot Comics List
- Joker Comics Price Guide
- Other Batman Characters 1st Appearance Values
- Scarecrow Batman Comics Prices
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