Ungraded vs PSA 10 Brooks Robinson #390 1966 Topps Baseball: price difference
Brooks Robinson #390 1966 Topps Baseball value — Ungraded $11 vs PSA 10 $3164. PSA 10 sells for 287.64× Ungraded (+28664%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 287.64× (+28664%) the Ungraded price — a $3,153 difference per card.
Grade 9 sells for 239.73× (+23873%) the Ungraded price — a $2,626 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Brooks Robinson #390 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $3,153 (287.64×) — 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).