Detective Comics #20 (1938) — Comic Book Value

Detective Comics

What Detective Comics #20 (1938) is worth — ungraded and CGC graded (6.0, 8.0).

Detective Comics #20 (1938) value — Ungraded ¥132,708 · $847 · Grade 6.0 ¥393,267 · $2,510 · Grade 8.0 ¥1,036,125 · $6,613. Prices updated 2026年8月.

Series · Detective Comics
Live on eBay now

Converted from USD at the ECB reference rate — sold comps are US-market sales.

Steady
See current eBay listings
Selling on eBay right now · by condition
New
$8.99
5 listings asking
Used
$10
7 listings asking
Median of current eBay asking prices — live, not sold data.
Value by grade
$847
Ungraded
3.0×
$2,510
Grade 6.0
7.8×
$6,613
Grade 8.0

Real sold prices per grade — the Grade 8.0 premium on this card is 7.8× raw.Chart values in USD

完品(箱付き)価格推移

月次CIB価値、実売データに基づく。 Chart values in USD.

See the actual sold listings on eBay ↗

Live on eBay right now

Which version do you have?

To simply own the comic, the Newsstand version at $2 is the cheapest entry point. The Standard ($847) and Combo-Pack ($5) versions offer higher condition or packaging value, while the Blank ($5) is likely for restoration or variant purposes. Collectors prioritizing investment should pay for the Standard, whereas casual buyers should stick to the Newsstand.

JunkPal AI· resale insightanalyzing sold comps…

価格データの検証元 · 1

Item details

Series
Detective Comics
Publisher
DC
Issue
#20
Key issue
Yes
Release date
October 1, 1938

Detective Comics #20 (1938) comic value

An ungraded copy of Detective Comics #20 (1938) averages around $847. A CGC 6.0 runs about $2510, and a CGC 8.0 commands $6613.

What drives the price

Grade is everything in comics — spine ticks, page color, and restoration decide the number, and the jump from raw to high grade can be 10×+. Key issues (first appearances, origins, deaths) carry the biggest premiums, and early printings beat reprints.

Price guide

Sold values by grade vs. what sellers ask today

Shop this on eBay ↗
ConditionValueBased on
Ungraded¥132,708 · $847eBay sold comps
Grade 6.0¥393,267 · $2,510eBay sold comps
Grade 8.0¥1,036,125 · $6,613eBay sold comps
Live asking — low / typical / high¥782 / ¥2,350 / ¥705,060$4.99 / $15 / $4,50020 live eBay listings

Market check: As of July 18, 2026, 20 live eBay listings ask $4.99–$4,500.00 (median $15.00).

よくある質問

What is the starting price for Detective Comics #20?
The ungraded version of Detective Comics #20 is currently valued at $847.
How much is a high-grade copy of this comic worth?
A Grade 8.0 copy of Detective Comics #20 is valued at $6613.
Is the condition of Detective Comics #20 the biggest factor in its price?
Yes, the price jumps significantly from the ungraded $847 to the Grade 6.0 price of $2510.

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