Ungraded vs PSA 10 Mel Queen #556 1966 Topps Baseball: price difference
Mel Queen #556 1966 Topps Baseball value — Ungraded $23 vs PSA 10 $3469. PSA 10 sells for 150.83× Ungraded (+14983%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 150.83× (+14983%) the Ungraded price — a $3,446 difference per card.
Grade 9 sells for 31.17× (+3017%) the Ungraded price — a $694 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mel Queen #556 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $3,446 (150.83×) — 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).