Ungraded vs PSA 10 Bob Allen #538 1966 Topps Baseball: price difference
Bob Allen #538 1966 Topps Baseball value — Ungraded $15 vs PSA 10 $1020. PSA 10 sells for 68× Ungraded (+6700%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 68× (+6700%) the Ungraded price — a $1,005 difference per card.
Grade 9 sells for 14.87× (+1387%) the Ungraded price — a $208 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Bob Allen #538 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $1,005 (68×) — 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).