2023 UK KING CHARLES III DEFINITIVES PROOF COIN SET

The 2023 UK King Charles III Definitives Proof Coin Set — the first full definitive proof collection issued under the reign of King Charles III. Struck to the highest proof standard, this landmark set introduces the new obverse portrait of King Charles III by Martin Jennings, paired with the Royal Shield definitive reverses designed by Matthew Dent.

The set includes all circulating denominations from 1p to £2, each struck with frosted devices and mirror‑polished fields. As the first definitive proof set of the new reign, the 2023 issue holds particular significance for modern collectors and marks a major transition in British coinage.

This example is complete, in original Royal Mint packaging with its certificate of authenticity, ensuring full provenance and presentation quality.

• Monarch: King Charles III
• Type: Definitive Proof Year Set
• Year: 2023
• Denomination Range: 1p–£2
• Metal: Mixed metals (Copper‑plated steel, Nickel‑plated steel, Cupro‑nickel, Bi‑metallic)
• Weight: Full multi‑denomination proof set
• Diameter: Standard circulating sizes
• Reverse Designs:
  • Royal Shield of Arms (definitives)
• Obverse: King Charles III by Martin Jennings
• Presentation: Original Royal Mint packaging with COA
• Mintage: 17,500 sets
• Catalogue Numbers:
  • Spink (S): 5100‑2023
  • KM: PS‑2023
• Classification: Modern British decimal proof collection
• Collectability: First definitive proof set of the Charles III era; highly desirable modern issue

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