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	1969		UNC/FDC		£9.50	Buy
50p	1970		AUNC		£22.50	Buy
50p	1970		EF		£17.50	Buy
50p	1970		VF		£12.50	Buy
50p	1971		UNC/FDC		£19.50	Buy
50p	1972		UNC/FDC		£17.50	Buy
50p	1973		UNC/FDC		£6.00	Buy
50p	1974		UNC/FDC		£22.50	Buy
50p	1975		UNC/FDC		£19.50	Buy
50p	1976		UNC/FDC		£5.00	Buy
50p	1977		UNC/FDC		£9.50	Buy
50p	1978		UNC/FDC		£5.00	Buy
50p	1979		UNC/FDC		£11.00	Buy
50p	1980		UNC/FDC		£7.50	Buy
50p	1981		UNC/FDC		£5.00	Buy
50p	1982		UNC/FDC		£9.50	Buy
50p	1983		UNC/FDC		£5.00	Buy
50p	1984		UNC/FDC		£15.00	Buy
50p	1985		UNC/FDC		£15.00	Buy
50p	1986		UNC/FDC		£5.00	Buy
50p	1987		UNC/FDC		£17.50	Buy
50p	1988		UNC/FDC		£17.50	Buy
50p	1989		UNC/FDC		£19.50	Buy
50p	1990		UNC/FDC		£15.00	Buy
50p	1991		UNC/FDC		£17.50	Buy
50p	1992		UNC/FDC		£22.50	Buy
50p	1992	-1993 EEC slabbed but ...	UNC		£89.50	Buy
50p	1992	/3 EEC	UNC		£85.00	Buy
50p	1992	/3 EEC Proof	FDC		£89.50	Buy
50p	1993		UNC/FDC		£17.50	Buy
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
50p	2006	VC	UNC/FDC		£11.00	Buy
50p	2006	VC	EF		£5.00	Buy
50p	2006	VC & Soldier (2)	UNC	in RM Folder	£25.00	Buy
50p	2007	Scouts	UNC	in first day cover	£15.00	Buy
50p	2007	Scouts	UNC/FDC		£9.50	Buy
50p	2008	Emblem	UNC/FDC		£15.00	Buy
50p	2008	Shield	UNC/FDC		£15.00	Buy
50p	2009	Kew Gardens	UNC	in RM card	£325.00	Buy
50p	2009	Kew Gardens	AUNC		£195.00	Buy
50p	2009	Kew Gardens Slabbed ...	MS-67	DPL	£395.00	Buy
50p	2009	Silver Proof Copy	UNC/FDC		£19.50	Buy
50p	2010	Girlguiding	UNC	in RM Folder	£19.50	Buy
50p	2010	Girlguiding	UNC	in first day cover	£15.00	Buy
50p	2010	Girlguiding	UNC/FDC		£11.00	Buy
50p	2010	Shield	UNC		£39.50	Buy
50p	2011	(29) Olympic set in ...	UNC/FDC		£275.00	Buy
50p	2011	(29) Olympic set in ...	UNC	in folder	£950.00	Buy
50p	2011	(30) Olympic set in ...	AUNC		£195.00	Buy
50p	2011	(30) Olympic set includes ...	UNC	in folder	£325.00	Buy
50p	2011	S4960 High jump	AUNC		£9.50	Buy
50p	2011	S4960 High jump	EF		£5.00	Buy
50p	2011	S4960 High jump ...	UNC/FDC		£9.50	Buy
50p	2011	S4961 Cyclist	AUNC		£12.50	Buy
50p	2011	S4961 Cyclist	EF		£9.50	Buy
50p	2011	S4961 Cyclist in ...	UNC/FDC		£15.00	Buy
50p	2011	S4961 Cyclist Silver	UNC/FDC		£44.00	Buy
50p	2011	S4962 Swimming	AUNC		£7.50	Buy
50p	2011	S4962 Swimming in ...	UNC/FDC		£9.50	Buy
50p	2011	S4962A Swimming ...	UNC/FDC		£12.50	Buy
50p	2011	S4963 Archery	AUNC		£7.50	Buy
50p	2011	S4963 Archery	EF		£5.00	Buy
50p	2011	S4963 Archery in ...	UNC/FDC		£9.50	Buy
50p	2011	S4964 Badminton	AUNC		£9.50	Buy
50p	2011	S4964 Badminton in ...	UNC/FDC		£15.00	Buy
50p	2011	S4964 Badminton Silver	UNC/FDC		£39.50	Buy
50p	2011	S4965 Basketball	AUNC		£11.00	Buy
50p	2011	S4965 Basketball	EF		£7.50	Buy
50p	2011	S4965 Basketball in ...	UNC/FDC		£15.00	Buy
50p	2011	S4965 Basketball Silver	UNC/FDC		£35.00	Buy
50p	2011	S4966 Boccia	EF		£6.00	Buy
50p	2011	S4966 Boccia in ...	UNC/FDC		£9.50	Buy
50p	2011	S4966 Boccia Silver	UNC/FDC		£35.00	Buy
50p	2011	S4967 Boxing	AUNC		£7.50	Buy
50p	2011	S4967 Boxing	EF		£5.00	Buy
50p	2011	S4967 Boxing in ...	UNC/FDC		£9.50	Buy
50p	2011	S4967 Boxing Silver	UNC/FDC		£35.00	Buy
50p	2011	S4968 Canoe	AUNC		£11.00	Buy
50p	2011	S4968 Canoe	EF		£6.00	Buy
50p	2011	S4968 Canoe in ...	UNC/FDC		£15.00	Buy
50p	2011	S4968 Canoe Silver	UNC/FDC		£49.50	Buy
50p	2011	S4969 Equestrianism	AUNC		£7.50	Buy
50p	2011	S4969 Equestrianism	EF		£5.00	Buy
50p	2011	S4969 Equestrianism in ...	UNC/FDC		£9.50	Buy
50p	2011	S4969 Equestrianism Silver	UNC/FDC		£35.00	Buy
50p	2011	S4970 Fencing	AUNC		£6.00	Buy
50p	2011	S4970 Fencing in ...	UNC/FDC		£9.50	Buy
50p	2011	S4970 Fencing Silver	UNC/FDC		£35.00	Buy
50p	2011	S4971 Football	UNC/FDC	in RM card	£39.50	Buy
50p	2011	S4971 Football	AUNC		£29.50	Buy
50p	2011	S4972 Goalball	AUNC		£6.00	Buy