Ungraded vs Grade 8.0 Adventure Comics #273 (1960): price difference
Adventure Comics #273 (1960) value — Ungraded $12 vs Grade 8.0 $140. Grade 8.0 sells for 11.67× Ungraded (+1067%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 11.67× (+1067%) the Ungraded price — a $128 difference per comic.
Grade 6.0 sells for 6.42× (+542%) the Ungraded price — a $65 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #273 (1960), the jump from Ungraded to Grade 8.0 is worth $128 (11.67×) — 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).