Ungraded vs PSA 10 Bob Montgomery #491 1973 Topps Baseball: price difference
Bob Montgomery #491 1973 Topps Baseball value — Ungraded $2 vs PSA 10 $332. PSA 10 sells for 166× Ungraded (+16500%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 166× (+16500%) the Ungraded price — a $330 difference per card.
Grade 9 sells for 14.5× (+1350%) the Ungraded price — a $27 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Bob Montgomery #491 1973 Topps Baseball, the jump from Ungraded to PSA 10 is worth $330 (166×) — 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).