Ungraded vs PSA 10 Duffy Dyer #538 1975 Topps Baseball: price difference
Duffy Dyer #538 1975 Topps Baseball value — Ungraded $2 vs PSA 10 $9000. PSA 10 sells for 4,500× Ungraded (+449900%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 4,500× (+449900%) the Ungraded price — a $8,998 difference per card.
PSA 10 sells for 176.47× (+17547%) the Grade 9 price — a $8,949 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Duffy Dyer #538 1975 Topps Baseball, the jump from Ungraded to PSA 10 is worth $8,998 (4,500×) — 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).