Ungraded vs PSA 10 Ken McMullen #566 1976 Topps Baseball: price difference
Ken McMullen #566 1976 Topps Baseball value — Ungraded $2 vs PSA 10 $308. PSA 10 sells for 154× Ungraded (+15300%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 154× (+15300%) the Ungraded price — a $306 difference per card.
Grade 9 sells for 16× (+1500%) the Ungraded price — a $30 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Ken McMullen #566 1976 Topps Baseball, the jump from Ungraded to PSA 10 is worth $306 (154×) — 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).