Ungraded vs PSA 10 Bill Robinson #637 1979 Topps Baseball: price difference
Bill Robinson #637 1979 Topps Baseball value — Ungraded $2 vs PSA 10 $429. PSA 10 sells for 214.5× Ungraded (+21350%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 214.5× (+21350%) the Ungraded price — a $427 difference per card.
PSA 10 sells for 15.32× (+1432%) the Grade 9 price — a $401 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Bill Robinson #637 1979 Topps Baseball, the jump from Ungraded to PSA 10 is worth $427 (214.5×) — 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).