1888-S Morgan Silver Dollar. MS-64 DMPL (PCGS). CAC. A semi key Morgan dollar in all grades due to a limited mintage of 657,000 pieces, the 1888-S is a particularly rare find with a DMPL finish, as here. Radiant mint brilliance throughout, no toning is reported on either side. Sharply struck throughout, and free of individually mentionable abrasions.