Detective Comics #340 (1965) — Comic Book Value
Detective ComicsWhat Detective Comics #340 (1965) is worth — ungraded and CGC graded (6.0, 8.0).
Detective Comics #340 (1965) value — Ungraded $16 · Grade 6.0 $64 · Grade 8.0 $96. Prices updated July 2026.
Series · Detective Comics
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Value by grade
$16
Ungraded
4.0×
$64
Grade 6.0
6.0×
$96
Grade 8.0
Real sold prices per grade — the Grade 8.0 premium on this card is 6.0× raw.
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Item details
- Series
- Detective Comics
Detective Comics #340 (1965) comic value
An ungraded copy of Detective Comics #340 (1965) averages around $16. A CGC 6.0 runs about $64, and a CGC 8.0 commands $96.
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
| Condition | Value | Based on |
|---|---|---|
| Ungraded | $16 | eBay sold comps |
| Grade 6.0 | $64 | eBay sold comps |
| Grade 8.0 | $96 | eBay sold comps |
Frequently asked questions
- What is the starting resale price for this comic?
- An ungraded copy of Detective Comics #340 starts at approximately $15.
- How much is a Grade 8.0 copy worth?
- A Grade 8.0 copy of Detective Comics #340 is valued at $96.
- Is there a significant price jump between grades?
- Yes, the price increases notably from the ungraded $15 to the Grade 6.0 value of $58.