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	1994		UNC	in RM folder	£7.50	Buy
50p	1994		UNC/FDC		£5.00	Buy
50p	1995		UNC/FDC		£19.50	Buy
50p	1996		UNC/FDC		£19.50	Buy
50p	1997	Large	UNC/FDC		£19.50	Buy
50p	1997	Small	UNC/FDC		£5.00	Buy
50p	1998		UNC/FDC		£5.00	Buy
50p	1998	EU	UNC	in card	£7.50	Buy
50p	1998	EU	UNC/FDC		£5.00	Buy
50p	1998	EU & Plain (2)	UNC	in RM folder	£25.00	Buy
50p	1998	NHS	UNC	in RM Folder	£29.50	Buy
50p	1998	NHS	UNC	in first day cover	£22.50	Buy
50p	1998	NHS	EF		£5.00	Buy
50p	1999		UNC/FDC		£5.00	Buy
50p	2000	Libraries	UNC	in RM Folder	£32.50	Buy
50p	2000	Libraries	UNC	in first day cover	£25.00	Buy
50p	2000	Libraries	UNC/FDC		£5.00	Buy
50p	2000	Plain	UNC/FDC		£7.50	Buy
50p	2001		UNC/FDC		£5.00	Buy
50p	2002		UNC/FDC		£11.00	Buy
50p	2003	Votes	UNC/FDC		£11.00	Buy
50p	2003	Votes	EF		£6.00	Buy
50p	2004	4 minute mile	UNC	in RM folder	£32.50	Buy
50p	2004	4 minute mile	UNC/FDC		£11.00	Buy
50p	2004	4 minute mile	EF		£5.00	Buy
50p	2004	Plain	UNC/FDC		£11.00	Buy
50p	2005	Dictionary	UNC/FDC		£5.00	Buy
50p	2006	Plain	UNC/FDC		£12.50	Buy
50p	2006	Soldier	UNC/FDC		£9.50	Buy
50p	2006	Soldier	EF		£5.00	Buy