Ungraded vs Grade 8.0 Adventure Comics #291 (1961): price difference
Adventure Comics #291 (1961) value — Ungraded $22 vs Grade 8.0 $152. Grade 8.0 sells for 6.91× Ungraded (+591%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 6.91× (+591%) the Ungraded price — a $130 difference per comic.
Grade 6.0 sells for 4.45× (+345%) the Ungraded price — a $76 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #291 (1961), the jump from Ungraded to Grade 8.0 is worth $130 (6.91×) — 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).