Ungraded vs MS66 1990 S [PROOF] Lincoln Memorial Penny: price difference
1990 S [PROOF] Lincoln Memorial Penny value — Ungraded $3 vs MS66 $2302. MS66 sells for 767.33× Ungraded (+76633%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
MS66 sells for 767.33× (+76633%) the Ungraded price — a $2,299 difference per coin.
MS66 sells for 92.08× (+9108%) the MS62 price — a $2,277 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1990 S [PROOF] Lincoln Memorial Penny, the jump from Ungraded to MS66 is worth $2,299 (767.33×) — 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).