DC · Copper Age · 1984

Saga of the Swamp Thing #21

DC · 1984

Noted for: Anatomy Lesson

KEY ISSUE

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CGC 9.8 CGC 9.6 CGC 9.4 CBCS 9.8

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What is Saga of the Swamp Thing #21 worth?

The Saga of the Swamp Thing #21 is a DC 1984 graded comic. Based on 4 verified eBay sold listings in the stored historical sample, graded examples sold for $52 to $210. CGC 9 examples are the most actively traded grade in this sample, with a recorded median around $180.

Before you buy

Verify the issue and printing, check the grader certification, review restoration notes, and compare recorded sales and current asking prices in the same grade.

Grading guides

The Saga of the Swamp Thing #21 in context

Why collectors care

The Saga of the Swamp Thing #21 (1984) is "The Anatomy Lesson," Alan Moore's landmark issue that reinvented Swamp Thing and modern horror comics. It is a hugely influential Copper Age key.

How to identify it

A 1984 first printing of the second Swamp Thing series. Confirm the issue and edition.

Common mistakes

Do not confuse the second-series #21 with the 1970s first series. Later printings exist; check the indicia.

Grade considerations

High-grade copies with white pages are scarcer than the era suggests, which is where the premium sits.

Last recorded sales

4 recorded eBay sales, grouped by grade. Historical prices, not current asking prices.

Source: eBay sold listings
Sample: 4 sales
Record: Historical sale sample
Newest recorded sale: Sep 12, 2026

How we compile comps →

Grade	Sales	Median	Range
CGC 9	2	$180	$150 to $210
CBCS 9	1	$146	N/A
CGC 8.0	1	$52	N/A

Last recorded sales · how this summary is built+

Newest recorded sale: 2026-09-12. This summary describes stored history.

Inclusion

All 4 recorded eBay sold (completed) listings in this historical sample, grouped by grader and grade. Asking prices and active listings are never counted.

Outlier handling

Within any grade that has four or more sales, a price below one-third of, or above three times, the within-grade median is set aside before the median is taken. No sales were set aside for this item.

Grade	Sales	Included
CGC 9	2	2
CBCS 9	1	1
CGC 8.0	1	1

Shipping and fees

Figures are the sale prices as recorded by the marketplace. They are not adjusted for shipping, taxes, or seller fees, so treat them as sale-price reference points, not net-to-seller or all-in buyer costs.

Provenance

Every sale in this summary traces to an individual eBay listing, shown in the sold-listings table lower on this page. Methodology version 2026.1. Read the full methodology.

Saga of the Swamp Thing #21 value FAQ

What is Saga of the Swamp Thing #21 worth?+

Based on 4 verified eBay sold listings in the stored historical sample, graded examples sold for $52 to $210.

What grade sells most often for Saga of the Swamp Thing #21?+

CGC 9 is the most actively traded grade in the recorded sample, with 2 sales and a recent median around $180.

What is the highest median grade for Saga of the Swamp Thing #21?+

CGC 9 has the highest median in the recorded sample at about $180. Treat this as a sold-comp snapshot, not a guaranteed sale price.

Is Saga of the Swamp Thing #21 worth grading?+

For this comic, compare the likely raw value, grading fees, shipping, and the median for the grade you realistically expect. Grading usually makes sense only when the expected graded value clears those costs.