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Paul Gustavson

DC May 1939

Detective Comics #27

Detective Comics #27
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Low
$250K
Mid
$890K
High
$2.2M
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1st appearance of Batman
1st appearance of Commissioner Gordon
💰 Detective Comics #27 has sold for over one million dollars 9x with a record high sale in grade 7.0 for $2.31 million (February 2026)
DC Sep 1939

Detective Comics #31

Detective Comics #31
View Series Variants (3)
Low
$53K
Mid
$140K
High
$410K
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1st appearance of The Monk, Batman's first costumed enemy
1st appearance of Julie Madison, Bruce Wayne's girlfriend
5th appearance of Batman
Debut of the Batgyro, an airborn vehicle later replaced by the Batplane
Debut of the Batarang
Stories take place in New York City
Quality Oct 1940

Smash Comics #17

Smash Comics #17
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Low
$120
Mid
$360
High
$1.2K
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Prototype of Plastic Man
In the story Wun Cloo, the protagonist drinks a can of Super Putty, gaining the ability to manipulate his body into impossible shapes, including that of a giant frog
Jack Cole, the creator of Plastic Man, wrote the Wun Cloo story featured in this issue, published nine months before the first appearance of Plastic Man in Police Comics #1

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