Ungraded vs Grade 8.0 Adventure Comics #305 (1963): price difference
Adventure Comics #305 (1963) value — Ungraded $16 vs Grade 8.0 $135. Grade 8.0 sells for 8.44× Ungraded (+744%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 8.44× (+744%) the Ungraded price — a $119 difference per comic.
Grade 6.0 sells for 4.25× (+325%) the Ungraded price — a $52 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #305 (1963), the jump from Ungraded to Grade 8.0 is worth $119 (8.44×) — 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).