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Superman #131
CGC Census
71
Total Graded
0
9.8 NM/MT
6
8.0 VF
Mr. Mxyzptlk returns and this time he has an alarm in his hat to warn him when he is about to say his name backwards.
Cover Date
August 1, 1959
On Sale Date
June 18, 1959
Pages
36
Cover Price
$0.10
Rating
Approved by the Comics Code Authority
Editor
Mort Weisinger
Credits
Writer
Penciller
Inker
Letterer
Characters
Mr. Mxyzptlk
superhero