Dec 17, 2025 · Discover the top 10 most valuable 1988 Quarter auction records and current market values.

Apr 24, 2025 · Learn how to identify a valuable 1988 Washington quarter. Understand how to assess a 1988 quarter value by its grades, mint marks, & mint errors.

Learn about the 1988 quarter value including Philadelphia (P), Denver (D), and San Francisco (S) mint marks, common and rare error coins like broadstrike, off-center strikes, missing clad …

1989 quarters with the filled-in “P” mint mark feature a filled letter P caused by the die failing to hit the coin with enough force. The mint mark on these coins appears unclear and misshapen.

Oct 14, 2025 · Manufacturing errors create the most dramatic value increases for 1988 quarters. These mistakes occurred during various production stages, from die creation to final striking, …

Dec 3, 2025 · Collectors prize 1988-P quarters with full, original luster and sharp hair detail above Washington’s ear. Known errors include off-center strikes and broadstrike errors, which can …

1988 P Washington Quarter: Coin Value Prices, Price Chart, Coin Photos, Mintage Figures, Coin Melt Value, Metal Composition, Mint Mark Location, Statistics & Facts. Buy & Sell This Coin. …

Jun 13, 2023 · Some of the most valuable 1988 quarters are those with errors and varieties — things that may look odd or unusual. Now, it’s important to manage your expectations when it …

1988 P Washington Quarter photos, mintage, weights, diameters, errors, varieties, and much more.

Oct 26, 2022 · Aside from the mint marks, some coins also differ from others because of errors they have received during the minting process. The errors gave rise to a new type of coin. …