grailworth
Cover of Detective Comics (1937) #140

Detective Comics (1937) #140

DC 1937–2011 series Vol. 1 Cover date Oct 1948

Key issue1st Riddler

Fair market value
EditionStandard / direct
Population Report ↗

GradeCGC slabRaw
9.8 NM/M$73,053
$29,020–$87,091
$24,886*
$9,886–$29,668
9.6 NM+$46,203
$18,354–$55,081
$9,282*
$3,687–$11,066
9.4 NM$40,013
$15,895–$47,702
$8,887*
$3,530–$10,595
9.2 NM-$37,250
$14,797–$44,408
$8,474*
$3,366–$10,102
9.0 VF/NM$34,265
$13,612–$40,849
$8,259*
$3,281–$9,846
8.5 VF+$30,121
$11,965–$35,909
$7,436*
$2,954–$8,864
8.0 VF$28,233
$11,215–$33,658
$6,954*
$2,763–$8,291
7.0 FN/VF$22,486
$8,933–$26,807
$6,167*
$2,450–$7,352
6.0 FN$15,942
$5,334–$21,938
$5,337*
$2,120–$6,363
5.0 VG/FN$12,417
$4,155–$17,087
$4,729*
$1,878–$5,637
4.0 VG$10,925
$1,968–$13,779
$4,331*
$1,720–$5,163
2.0 GD$6,153
$2,444–$7,335
$3,729*
$1,481–$4,445
Raw, ungraded—$6,570*
$2,610–$7,833
Value history

grailworth's fair market value: what a copy at each grade is worth today, from this issue's market and how value moves with grade across every comic we track. Bold: our firmest values. *Rough: a looser estimate. +$: worth grading, a raw copy at that grade gains this much slabbed by CGC, after the fee and shipping. Pick a grade for its value history and the most to pay for a raw copy you'd send to CGC.

About this issue

Detective Comics #140 (1937) is issue #140 of DC's Detective Comics (1937–2011), with a cover date of October 1948. It's a key issue: 1st Riddler. grailworth values it from 9 recorded sales, most recently on Sep 24, 2026, and from how comics like it move in value from grade to grade.

Key issues in Detective Comics (1937)