Ungraded vs PSA 10 Nelson Mathews #366 1964 Topps Baseball: price difference
Nelson Mathews #366 1964 Topps Baseball value — Ungraded $2 vs PSA 10 $456. PSA 10 sells for 228× Ungraded (+22700%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 228× (+22700%) the Ungraded price — a $454 difference per card.
Grade 9 sells for 22.5× (+2150%) the Ungraded price — a $43 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Nelson Mathews #366 1964 Topps Baseball, the jump from Ungraded to PSA 10 is worth $454 (228×) — 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).