Ungraded vs Grade 6.0 Adventure Comics #138 (1949): price difference
Adventure Comics #138 (1949) value — Ungraded $139 vs Grade 6.0 $230. Grade 6.0 sells for 1.65× Ungraded (+65%). Prices updated August 2026.
↘ Falling · -24%
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs Grade 6.0
$139→$230
Grade 6.0 sells for 1.65× (+65%) the Ungraded price — a $91 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #138 (1949), the jump from Ungraded to Grade 6.0 is worth $91 (1.65×) — 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).