2026 Semiquincentennial US Proof Set

Set Highlights

• Maker: United States Mint

• Date: 2026

• Mint / Mint Mark: San Francisco (S)

• Finish: Proof (frosted devices, mirrored fields)

• Coinage: Standard (clad) Proof Set (not the silver version)

• Coins Included (10 coins):

  • 1¢ Lincoln cent (collector issue; not released into circulation)

  • 5¢ Jefferson nickel (familiar design; dual-dated)

  • 10¢ Emerging Liberty dime (new 2026 design; “LIBERTY OVER TYRANNY”)

  • 25¢ Five 2026 SemiQ quarters: Mayflower Compact; Revolutionary War; Declaration of Independence; U.S. Constitution; Gettysburg Address

  • 50¢ Enduring Liberty half dollar (new 2026 design; torch-passing motif)

  • $1 Native American dollar (2026 Polly Cooper / Oneida allies theme; not a SemiQ artwork coin)

• Dual Date: Most coins carry “1776 ~ 2026” as part of the Semiquincentennial presentation.

Historical Note
The 2026 Semiquincentennial program creates a true “one-year type” moment in modern U.S. coinage: the dime, quarters, and half dollar receive special 2026-only designs, while the annual Proof Set captures them in uniform S-mint Proof striking.

Collectibility
This is a cornerstone set for U.S. modern collectors because it combines (1) five different 2026 quarter designs, (2) the new half dollar design, and (3) the new dime design—all in Proof—plus the collector-only 2026 cent as part of the matched annual lineup.