Detective Comics #140

Key Issue

First appearance of The Riddler; Origin of The Ridder; First appearance of Edward Nigma

Artist

Winslow Mortimer

Dick Sprang

Jimmy Thompson

Howard Sherman

Curt Swan

Script Writer

Bill Finger

Otto Binder

Publisher

DC Comics

Editor

Whitney Ellsworth

Publication Date

Oct 10, 1948

Cover Price

$0.10

Page Count

52 pages

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CGC Title	Publisher	Date	Verify
Detective Comics #140	D.C. Comics	10/48	Verify with CGC

All Grades 228 Population Share	Universal 194 85.1% of pop	Signature 0 0% of pop	Restored 23 10.1% of pop	Qualified 8 3.5% of pop	Conserved 3 1.3% of pop
9.6	1 top 0.5%	0 --	0 --	0 --	0 --
9.4	2 top 1.5%	0 --	0 --	0 --	0 --
9.0	2 top 2.6%	0 --	0 --	0 --	0 --
8.5	2 top 3.6%	0 --	3 top 13%	0 --	0 --
8.0	5 top 6.2%	0 --	3 top 26.1%	0 --	0 --
7.5	5 top 8.8%	0 --	3 top 39.1%	0 --	0 --
7.0	12 top 14.9%	0 --	3 top 52.2%	1 top 12.5%	0 --
6.5	9 top 19.6%	0 --	0 --	0 --	0 --
6.0	14 top 26.8%	0 --	0 --	0 --	0 --
5.5	11 top 32.5%	0 --	0 --	0 --	0 --
5.0	15 top 40.2%	0 --	1 top 56.5%	1 top 25%	0 --
4.5	21 top 51%	0 --	0 --	2 top 50%	1 top 33.3%
4.0	9 top 55.7%	0 --	1 top 60.9%	0 --	1 top 66.7%
3.5	17 top 64.4%	0 --	1 top 65.2%	1 top 62.5%	1 top 100%
3.0	19 top 74.2%	0 --	0 --	0 --	0 --
2.5	11 top 79.9%	0 --	1 top 69.6%	0 --	0 --
2.0	9 top 84.5%	0 --	1 top 73.9%	0 --	0 --
1.8	4 top 86.6%	0 --	3 top 87%	0 --	0 --
1.5	11 top 92.3%	0 --	2 top 95.7%	1 top 75%	0 --
1.0	5 top 94.8%	0 --	0 --	1 top 87.5%	0 --
0.5	10 top 100%	0 --	1 top 100%	1 top 100%	0 --
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3 Variations of Detective Comics #140