Grade 9 vs PSA 10 Mike Marshall #263 1977 Topps Baseball: price difference
Mike Marshall #263 1977 Topps Baseball value — Grade 9 $20 vs PSA 10 $261. PSA 10 sells for 13.05× Grade 9 (+1205%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
Grade 9 vs PSA 10
$20→$261
PSA 10 sells for 13.05× (+1205%) the Grade 9 price — a $241 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mike Marshall #263 1977 Topps Baseball, the jump from Grade 9 to PSA 10 is worth $241 (13.05×) — 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).