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Giant-Size Thor#1

Cover: Gil Kane & Joe Sinnott

Giant-Size Thor #1

Jun 1975 · Marvel · 0.50 USD

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In "If Asgard Falls..", Thor finds himself caught in a clash between Asgardian might and the storm giants guarding the gateway to Olympus, leading to an unexpected journey across realms. After a fierce battle with Hercules, Zeus intervenes, declaring both heroes worthy allies—before sealing the passage forever. Written by Stan Lee and brought to life with dynamic art by Jack Kirby, inks by Vince Colletta, and lettering by Sam Rosen, this Giant-Size Thor #1 (1975) features a striking cover by Gil Kane and Joe Sinnott.

Contains 3 stories

If Asgard Falls..

30 pp · Fantasy, Superhero

ThorOdinBalderHeimdallWarriors Three [HogunFandralVolstagg]LokiDestroyerBrokTyrGalpDromAbsorbing Man (cameo)

When Titans Clash!

15 pp · Superhero

ThorLokiHercules (introduction)Zeus (introduction)Storm Giants

In "When Titans Clash!", Thor and Loki stumble upon a fierce clash between storm giants at the Asgardian gateway to Olympus. When Thor is swept through the rift, he finds himself facing the legendary Hercules in a battle of gods and might—neither willing to yield. Zeus ultimately steps in, declaring both warriors worthy, and with the passage sealed, Thor returns home.

When Heimdall Failed!

5 pp · Fantasy, Superhero

HeimdallKing BrimerQueen Nedra (introduction)Odina Vanna (an air-sprite) (introduction)

ComicBooks.com Value

Our Model is In Beta

Raw (Fine) $9

CGC 9.8 · 7 in census $350

CGC 9.6 · 24 in census $98

CGC 9.4 · 25 in census $62

CGC 9.2 · 21 in census $45

CGC 9.0 · 14 in census $37

CGC 8.5 · 13 in census $31

Show all 15 grades ▾

CGC 8.0 · 13 in census $28

CGC 7.5 · 4 in census $24

CGC 7.0 · 11 in census $21

CGC 6.5 · 13 in census $21

CGC 6.0 · 3 in census $20

CGC 5.5 · 3 in census $20

CGC 5.0 none in existence

CGC 4.5 · 1 in census $20

CGC 4.0 · 3 in census $20

Our model’s value — refined as new sales data arrives · CGC census counts shown where available

This exact issue on ebay

CGC 9.6 ▾ $249–$310 2 listings

CGC 9.6 $249 CGC 9.6 $310

CGC 9.4 $121 1 listing CGC 7 $175 1 listing CGC $275 1 listing

Raw — NM ▾ $5.75–$6 2 listings

Raw — FN ▾ $9.9–$24.65 3 listings

FN $9.9 FN $20 FN $24.65

Raw — FINE $19.99 1 listing Raw — VG+ $16.99 1 listing Raw — VG $15 1 listing

Raw / ungraded ▾ $5.59–$41.97 26 listings

Verified matches for Giant-Size Thor #1 · eBay asking prices, seen 3 days ago

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Full credits

writer Stan Lee

artist Jack Kirby

inker Vince Colletta

letterer Sam Rosen

cover pencils Gil Kane

cover inks Joe Sinnott

Reprints

↩ Reprints Journey into Mystery #105 (1964), Journey into Mystery Annual #1 (1965), Thor Annual #2 (1966)

Reprinted in Comic Reader #120 (1975), Thor Epic Collection #7 (2021), Giant-Size Marvel Omnibus #[nn] (2025)

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