Ungraded vs Grade 6.0 King Comics #20 (1937): price difference
King Comics #20 (1937) value — Ungraded $90 vs Grade 6.0 $528. Grade 6.0 sells for 5.87× Ungraded (+487%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Ungraded vs Grade 6.0
$90→$528
Grade 6.0 sells for 5.87× (+487%) the Ungraded price — a $438 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On King Comics #20 (1937), the jump from Ungraded to Grade 6.0 is worth $438 (5.87×) — 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).