# Detective Comics #40 (1940) value

The sold value for **Detective Comics #40 (1940)** is **$2,991.50 used**, based on real eBay sold comparisons [1]. Today, sellers are typically asking around **$3,500** for it on eBay [1].

This issue is highly valuable due to its age and historical significance, as it features the debut of Batman's sidekick, Robin. Condition and provenance can greatly affect its value, so grading or authentication might be worth considering for a precise assessment. You can compare current listings for this issue on eBay to see how it's being priced in the market.

## Items referenced

| Item | Used | New | Page | Sold comps |
| --- | --- | --- | --- | --- |
| Detective Comics #40 (1940) — Comic Book Value | $2991.5 | — | [view](https://junkpal.ai/products/detective-comics-40-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252340%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #45 (1940) — Comic Book Value | $1500 | $11165 | [view](https://junkpal.ai/products/detective-comics-45-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252345%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #41 (1940) — Comic Book Value | $1392.5 | $4033.13 | [view](https://junkpal.ai/products/detective-comics-41-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252341%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #44 (1940) — Comic Book Value | $1035 | $8272.88 | [view](https://junkpal.ai/products/detective-comics-44-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252344%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #46 (1940) — Comic Book Value | $831.34 | $3826 | [view](https://junkpal.ai/products/detective-comics-46-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252346%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #43 (1940) — Comic Book Value | $780 | $3964 | [view](https://junkpal.ai/products/detective-comics-43-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252343%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #42 (1940) — Comic Book Value | $666 | $7503.89 | [view](https://junkpal.ai/products/detective-comics-42-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252342%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |
| Detective Comics #35 (1940) — Comic Book Value | $9204.56 | — | [view](https://junkpal.ai/products/detective-comics-35-1940-detective-comics-comic) | [eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DDetective%2520Comics%2520%252335%2520(1940)%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-answer-sold&p=md-answer-sold) |

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_Updated 2026-08-08._

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Source: [https://junkpal.ai/answers/detective-comics-40-1940-value](https://junkpal.ai/answers/detective-comics-40-1940-value) · JunkPal price guide (junkpal.ai)
Values are medians of real closed eBay sales — estimates for reference, not offers or appraisals.
More machine-readable surfaces: [/llms.txt](https://junkpal.ai/llms.txt)