Ungraded vs Grade 6.0 Jumbo Comics #21 (1940): price difference
Jumbo Comics #21 (1940) value — Ungraded $102 vs Grade 6.0 $380. Grade 6.0 sells for 3.73× Ungraded (+273%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Ungraded vs Grade 6.0
$102→$380
Grade 6.0 sells for 3.73× (+273%) the Ungraded price — a $278 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Jumbo Comics #21 (1940), the jump from Ungraded to Grade 6.0 is worth $278 (3.73×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).