![Mel Parnell [Black Back] #30 1952 Topps Baseball](/api/images/junkpal-products/sports/mel-parnell-black-back-30-baseball-cards-1952-topps-sport/cover.webp)
Ungraded vs PSA 10 Mel Parnell [Black Back] #30 1952 Topps Baseball: price difference
Mel Parnell [Black Back] #30 1952 Topps Baseball value — Ungraded $13 vs PSA 10 $3114. PSA 10 sells for 239.54× Ungraded (+23854%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 239.54× (+23854%) the Ungraded price — a $3,101 difference per card.
Grade 9 sells for 235.54× (+23454%) the Ungraded price — a $3,049 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mel Parnell [Black Back] #30 1952 Topps Baseball, the jump from Ungraded to PSA 10 is worth $3,101 (239.54×) — 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).