Ungraded vs Grade 8.0 Thor #139 (1967): price difference
Thor #139 (1967) value — Ungraded $29 vs Grade 8.0 $75. Grade 8.0 sells for 2.59× Ungraded (+159%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 2.59× (+159%) the Ungraded price — a $46 difference per comic.
Grade 8.0 sells for 2.03× (+103%) the Grade 6.0 price — a $38 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Thor #139 (1967), the jump from Ungraded to Grade 8.0 is worth $46 (2.59×) — 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).