Ungraded vs PSA 10 Maple Leafs Logo #337 1977 O Pee Chee Hockey: price difference
Maple Leafs Logo #337 1977 O Pee Chee Hockey value — Ungraded $4 vs PSA 10 $364. PSA 10 sells for 91× Ungraded (+9000%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 91× (+9000%) the Ungraded price — a $360 difference per card.
Grade 9 sells for 10× (+900%) the Ungraded price — a $36 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Maple Leafs Logo #337 1977 O Pee Chee Hockey, the jump from Ungraded to PSA 10 is worth $360 (91×) — 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).