2022 Great Britain Alan Turing 50 Pence Gold Proof Coin NGC PF 68 UC Trial Piece

SPECIFICATIONS

1. Issuing Country Great Britain

2. Denomination 50 Pence

3. Year 2022

4. Issuing Authority The Royal Mint

5. Mintage  1 

6. Composition Gold

7. Fineness 0.9167

8. Weight 15.50 Grams (0.4552 oz )

9. Diameter 27.30mm

10. Coin Grading Service NGC

11. Grade PF 68 UC 

12. Certification Number 2168793-048