Ungraded vs PSA 10 Lou Brock #320 1973 Topps Baseball: price difference
Lou Brock #320 1973 Topps Baseball value — Ungraded $3 vs PSA 10 $1256. PSA 10 sells for 418.67× Ungraded (+41767%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 418.67× (+41767%) the Ungraded price — a $1,253 difference per card.
Grade 9 sells for 63× (+6200%) the Ungraded price — a $186 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Lou Brock #320 1973 Topps Baseball, the jump from Ungraded to PSA 10 is worth $1,253 (418.67×) — 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).