Decimal day occurred on 15 February 1971 when the UK decimalised its currency.

Under the old currency of Pounds, Shillings and Pence the Pound was made up of 240 Pence, with 12 Pence in a Shilling and 20 Shillings in a Pound. In an era before widespread computer use this meant that monetary calculation, such as adding up sums of money or calculating change was more complicated than with a decimal currency. 

The loss of value of the currency meant that the Penny was of relatively slight value, while the Farthing which was worth one-quarter of an old Penny had been demonetised on 1 January 1961.

Coins struck were the Pound, and 50, 20, 10, 5, 2, 1 and for a short while 1/2 Penny.  

Please see our Decimal 50p Coins for sale below:

50ps

Item	Date	Description	Grade	Additional Desc	Price
50p	2012	Shield	EF		£6.00	Buy
50p	2013	Britten	AUNC		£6.00	Buy
50p	2013	Ironside	UNC	in RM Folder	£75.00	Buy
50p	2013	Ironside	AUNC		£9.50	Buy
50p	2013	Shield	UNC/FDC		£11.00	Buy
50p	2014	Commonwealth	UNC/FDC		£7.50	Buy
50p	2014	Commonwealth games	UNC	in RM Folder	£22.50	Buy
50p	2015	Battle of Britain ...	UNC/FDC	coloured sticker	£9.50	Buy
50p	2015	Battle of Britain ...	UNC/FDC		£7.50	Buy
50p	2015	Shield IRB	EF		£9.50	Buy
50p	2015	Shield JC	UNC/FDC		£7.50	Buy
50p	2016	Battle of Hastings	UNC	in card	£15.00	Buy
50p	2016	Battle of Hastings	UNC/FDC		£9.50	Buy
50p	2016	Beatrix Potter	UNC	in RM folder	£19.50	Buy
50p	2016	Beatrix Potter (5)	AUNC	in folder	£44.00	Buy
50p	2016	Beatrix Potter Gilt	AUNC		£12.50	Buy
50p Commemorative	2016	Brexit	UNC		£12.50	Buy
50p	2016	Jemima Puddleduck	AUNC		£15.00	Buy
50p	2016	Jemima Puddleduck Proof	FDC		£25.00	Buy
50p	2016	Mrs Tiggywinkle	UNC	in RM folder	£15.00	Buy
50p	2016	Mrs Tiggywinkle	UNC	coloured	£15.00	Buy
50p	2016	Mrs Tiggywinkle	UNC	in card	£11.00	Buy
50p	2016	Mrs Tiggywinkle	UNC/FDC		£9.50	Buy
50p	2016	Mrs Tiggywinkle Gilt	AUNC		£12.50	Buy
50p	2016	Peter Rabbit	AUNC	coloured	£15.00	Buy
50p	2016	Peter Rabbit	UNC/FDC	in RM folder	£15.00	Buy
50p	2016	Peter Rabbit	UNC/FDC		£9.50	Buy
50p	2016	Peter Rabbit Gilt	AUNC		£12.50	Buy
50p	2016	Rio	UNC	in RM Card	£11.00	Buy
50p	2016	Rio	UNC/FDC		£6.00	Buy
50p	2016	Rio slabbed but ...	UNC		£15.00	Buy
50p	2016	Shield	UNC		£125.00	Buy
50p	2016	Squirrel Nutkin	UNC	in RM folder	£15.00	Buy
50p	2016	Squirrel Nutkin	UNC/FDC		£9.50	Buy
50p	2017	Beatrix Potter (4)	UNC	in first day cover	£39.50	Buy
50p	2017	Beatrix Potter (4)	AUNC	in folder	£35.00	Buy
50p	2017	Benjamin Bunny	UNC	in RM folder	£15.00	Buy
50p	2017	Benjamin Bunny	UNC	in card	£11.00	Buy
50p	2017	Benjamin Bunny	UNC/FDC		£9.50	Buy
50p	2017	Jeremy Fisher	UNC	in RM Folder	£15.00	Buy
50p	2017	Jeremy Fisher	UNC/FDC		£9.50	Buy
50p	2017	Newton	UNC	in RM folder	£15.00	Buy
50p	2017	Newton	UNC	in card	£11.00	Buy
50p	2017	Newton	UNC/FDC		£7.50	Buy
50p	2017	Peter Rabbit	UNC	in RM folder	£15.00	Buy
50p	2017	Peter Rabbit	UNC	in card	£11.00	Buy
50p	2017	Peter Rabbit	UNC/FDC		£7.50	Buy
50p	2017	Shield	UNC/FDC		£6.00	Buy
50p	2017	Tom Kitten	UNC	in RM folder	£15.00	Buy
50p	2017	Tom Kitten	UNC/FDC		£9.50	Buy
50p	2018	Beatrix Potter (4)	UNC	in folder	£44.00	Buy
50p	2018	Flopsy Bunny	UNC	in RM folder	£19.50	Buy
50p	2018	Flopsy Bunny	UNC/FDC		£11.00	Buy
50p	2018	Gloucester	UNC/FDC		£7.50	Buy
50p	2018	Gloucester - coloured	UNC		£15.00	Buy
50p Commemorative	2018	Lest we forget	UNC		£12.50	Buy
50p Commemorative	2018	Merry Christmas	UNC		£12.50	Buy
50p	2018	Paddington (2)	UNC	in Black case	£22.50	Buy
50p	2018	Paddington Palace	UNC	in card	£9.50	Buy
50p	2018	Paddington Palace	UNC/FDC		£7.50	Buy