A special anniversary edition of the 50p celebrates the science behind the shape

50 years ago a revolutionary new coin entered circulation ahead of the decimal switchover. Half a century later it’s still a mainstay of our coinage, testament to the science behind its radical design. As we celebrate 50 years of the 50p, a special anniversary coin pays tribute to Hugh Conway and his team. Tasked with creating a coin easily distinguishable by touch and sight that would still roll smoothly, their perfectly engineered solution gave us the world’s first seven-sided coin.


50 Years of the 50p 2019 UK 50p Brilliant Uncirculated Coin

Specification Value
Denomination 50p
Alloy Cupro-Nickel
Weight 8.00 g
Diameter 27.30mm
Reverse Designer Christopher Ironside
Specification Value
Obverse Designer Jody Clark
Quality Brilliant Uncirculated
Year 2019
Shape 7 Lobed
Country Of Origin United Kingdom
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