Ungraded vs PSA 10 Mickey McDermott #340 1956 Topps Baseball: price difference
Mickey McDermott #340 1956 Topps Baseball value — Ungraded $6 vs PSA 10 $1323. PSA 10 sells for 220.5× Ungraded (+21950%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 220.5× (+21950%) the Ungraded price — a $1,317 difference per card.
Grade 9 sells for 59.5× (+5850%) the Ungraded price — a $351 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mickey McDermott #340 1956 Topps Baseball, the jump from Ungraded to PSA 10 is worth $1,317 (220.5×) — 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).