Ungraded vs PSA 10 Don Dennis #142 1966 Topps Baseball: price difference
Don Dennis #142 1966 Topps Baseball value — Ungraded $2 vs PSA 10 $510. PSA 10 sells for 255× Ungraded (+25400%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 255× (+25400%) the Ungraded price — a $508 difference per card.
Grade 9 sells for 212.5× (+21150%) the Ungraded price — a $423 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Don Dennis #142 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $508 (255×) — 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).