Obverse
Fifth crowned portrait of Queen Elizabeth II by Jody Clark. Running continuously around the effigy:  'ELIZABETH II · D · G · REG · F· D · 50 PENCE · 2021'.

Reverse
Designed by Dominique Evans. In centre, a small seven sided shape containing the inscription '1971 DECIMAL DAY'. Around, parts of the designs of British pre-decimal coins, clockwise: two shillings; shilling; wren farthing; brass threepence; sixpence; a ship-type halfpenny; the figure of Britannia from a penny.

Specification
31 grams of 22 carat gold. 27.30 millimetres diameter. Struck to proof standard.

Presentation
One of just 200 issued in this presentation. Comes in original box from The Royal Mint with a numbered certificate of authenticity.

Gold proof piedfort Fifty Pence coin
Celebrates fifty years since Decimal Day in 1971
Double weight: 31.00 grams of 22 carat gold
Diameter of 27.30 millimetres
Flawless proof finish
Face value: 50p / Fifty Pence
From a limited edition of only 200 pieces
Obverse: Jody Clark's portrait of Elizabeth I
Reverse: old money inspired design by Dominique Evans
Offered in original box from The Royal Mint with COA

Metal:Gold
Precious Metal Content:28.42 (g)
Material:Gold
Monarch:Elizabeth II (1952-2022)
Denomination:50p / Fifty Pence
Country:United Kingdom
Finish:Proof
VAT Status:Exempt
Capital Gains Tax Status:Exempt
Weight:31.00g
New / Pre-owned:New
Condition:Proof - Boxed with certificate of authenticity
Diameter:27.30mm

The centre of the coin says:

1971 DECIMAL DAY

Specification
Metal Gold
Diameter 27.3mm
Gold Weight Troy Ounces 0.914
Fineness / Carat 0.917 / 22
Issue Limit 200
Retail Price £2,185
Date 2021
Obverse Designer Jody Clark
Reverse Designer Dominique Evans
Issuing Monarch Elizabeth II (1952-2022)
Mint / Brand The Royal Mint
Country United Kingdom