Decimalisation: Your top five questions answered

This year marks the 50th anniversary of the Decimalisation of our currency. On 15th February 1971, known as Decimal Day (or D-Day), the country switched to the decimal currency (based on multiples of 10 and 100) that we are familiar with today. But what happened on that day, and why is it important to collectors?

Before then, Britain used a monetary system that dated thousands of years back to the Roman Empire! The problem with the old Pounds, Shillings, and Pence system (sometimes called ‘old money’) is that it was based on multiples of 12 and 240. This made it quite confusing – there were 12 pennies in a shilling and 240 pennies in a pound, and 20 shillings made a pound – certainly not easy to add up in your head!

We get a lot of questions about Decimalisation, so before we celebrate the anniversary next month, we’ve answered some of your top questions about the biggest change to UK currency ever!

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A collection of pre-decimal British coins.

What were the coins called before Decimalisation?

The Pounds (£), Shillings (/-) and Pence (d) system included lots of coins with very different names to today’s coinage. A lot of these coins were given slang nicknames, such as ‘thrupence’ or ‘thrupny bit’ for a threepence, or a tanner for a sixpence. A Shilling was sometimes called a ‘bob’, and a ten shilling note would often be referred to as a ‘ten-bob‘ note.

Pre-decimal CoinAmountDecimal Equivalent
Halfpenny½d.5⁄24p ≈ 0.208p
Penny1d.5⁄12p ≈ 0.417p
Threepence3d.1¼p
Sixpence6d.2½p
Shilling1/-5p
Florin2/-10p
Half Crown2/612½p
Crown5/-25p

Who was the first country to go decimal?

Did you know the UK wasn’t the first country to go decimal? In fact, as early as 1704 Russia introduced the Ruble which was equal to 100 Kopecks, making it the first country to have a decimal coin. It was followed by France which introduced the Franc in 1795. Although the UK was one of the last to turn decimal, discussions first started in Britain as early as the 1820s, but the idea didn’t take off well with the public so it wasn’t until 150 years later that it actually happened.

When were the first decimal coins issued?

The first new decimal coins were actually issued before decimal day in 1971 – three years earlier in fact! In 1968 the plans for decimalisation were set in motion. To try and help the public acclimatise to the new decimal coins, the 5p and 10p, were issued, followed by the 50p a year later in 1969. This meant that the coins circulated alongside their pre-decimal siblings (Shilling, Florin, and 10 bob note) and were used interchangeably. By 1971 when the pre-decimal coinage ceased to be legal tender, only 3 new coins would be introduced (Half pence, one pence, two pence), making the jump to decimal currency a little easier for the public.

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Britain’s first decimal coins, including the halfpenny.

Why did the banks close for four whole days?

In 1971, very few banks used digital systems so on 10th February the banks closed for four days until Decimal Day. This allowed all outstanding cheques to be cleared in old money and all customers accounts to be converted into decimal coinage – and because most banks weren’t computerised, this had to be done manually! February was actually chosen as it was the quietest time of year for banks, shops, and public transport. It’s hard to imagine the banks closing for four days in a row now!

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A pre-decimal 10 Shilling note, often referred to as a ‘ten bob’ note.

How did people compare between the two currencies?

Many people worried about shopkeepers inflating the prices of products during the changeover, but with a public information campaign that ran for almost 2 years prior, many people already had some idea of the conversions. And to help, currency convertors were made available to people, and shops displayed the prices in both currencies before and after Decimal Day. People could also continue to pay in old money, but they would receive their change in new money.

It took some time, but soon the decimal currency became familiar to everyone and continues to be the biggest change to UK coinage in thousands of years. In the lead up to the 50th anniversary, we’ll be issuing a series of blogs telling you all you need to know about this iconic moment in numismatic history, so make sure to stay tuned!

If you’re interested:

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Six icons we owe to the Sixties

An explosion of colour and culture, the sixties is easily one of the most vibrant decades of our past.

From the summer of love, winning the world cup, to flower power and moonlandings, no other decade has done as much to shape the course of history. So take a trip down memory lane and delve back into the past as we uncover six things we owe to the sixties…

ONE: The First decimal coins

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You’d be correct if you questioned this one at first. Although the UK didn’t officially say goodbye to the old pounds, shillings and pence system until 1971, the Royal Mint issued the first decimal coins in 1968! On 23rd April, the British public would have found the 5p and 10p coins in their change for the first time. They were issued and circulated alongside the Florin and Shilling coins as part of a process to help the public acclimatise to the new decimal system, and are arguably one of the most important issues in UK numismatic history.

TWO: The First James Bond Film

The quintessentially British spy with the code name 007 first graced our screens in “Dr No” released in 1962. Since then there have been over 25 films with the legendary spy and his iconic gadgets. Without the first Bond film in the sixties, we may not have had the James Bond £5 Coins that were released earlier this year, or the ‘Bond’ 10p issued in 2016 by the Royal Mint!

THREE: The Beatles

Of course this wouldn’t be a sixties piece if I didn’t mention the Beatles and ‘Beatlemania’. Born out of rock and roll with new pop culture, the Beatles have become the defining sound of the sixties, with people all over the world still inspired by their music today.

FOUR: Doctor Who

The first ever Dr Who episode was released in 1963. From then on, every week, the nation joined the Doctor and his companion in the Tardis to adventure through space and time, encountering aliens, cybermen, and of course the dreaded Daleks. Dr Who has since given rise to thousands of commemoratives, including a special Royal Mail stamp issue in 2012!

FIVE: Colour TV

The sixties is remembered as a colourful and vibrant era, and what better defines that than colour TV! In 1967 BBC launched the first UK colour channel – a truly defining moment that has shaped the films and characters we see on screen today.

SIX: The Moonlandings

The end of the decade saw one of the most iconic moments in world history as Neil Armstrong became the first man to step foot on the moon. There isn’t a person alive today who can’t finish the phrase “one small step for man… “. As such an important moment, it gave rise to huge opportunities in space exploration and technology that we still see today.  

Of course there is a never ending list of inventions, iconic moments, fashion, music, films, TV shows and more that we owe to the sixties. One thing’s for sure is that it shaped a generation and was a decade like no other.


If you’re interested

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