Ungraded vs PSA 10 Harry Walker #318 1966 Topps Baseball: price difference
Harry Walker #318 1966 Topps Baseball value — Ungraded $2 vs PSA 10 $18000. PSA 10 sells for 9,000× Ungraded (+899900%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 9,000× (+899900%) the Ungraded price — a $17,998 difference per card.
PSA 10 sells for 180× (+17900%) the Grade 9 price — a $17,900 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Harry Walker #318 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $17,998 (9,000×) — 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).