Ungraded vs Grade 8.0 Adventures into the Unknown #142 (1963): price difference
Adventures into the Unknown #142 (1963) value — Ungraded $8 vs Grade 8.0 $29. Grade 8.0 sells for 3.63× Ungraded (+263%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 3.63× (+263%) the Ungraded price — a $21 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventures into the Unknown #142 (1963), the jump from Ungraded to Grade 8.0 is worth $21 (3.63×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. 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).