The last British Groat (Fourpence) coins minted for general circulation were issued in 1855. There were Proof coins minted in 1857, 1862 and 1888.
The Groat does not seem to have been officially withdrawn from circulation at any time and was still being used in some ceremonies well into the 20th century. Circulation of the Groat just seems to have declined as most found their way into coin collections.
The Groat has continued to be produced as part of the British silver Maundy set, an annual ceremony which continues to this day.
The Groat is no longer circulated since the silver content and numismatic value of the Maundy coins far outweigh their face values.
It appears that the Groat (Fourpence) is still legal tender in the UK since it is still issued as part of the Maundy Set which is itself legal tender, although not circulated due to the silver content and the subsequent value of the coins being well above face value.
Such a coin does not exist. The last British Groat (Fourpence) was issued for circulation in 1855.
The Groat was last minted for British circulation in 1855. There was a "once only" minting for British Guiana in 1888.
The groat was a silver coin worth four pence, but it hasn't been produced for circulation since the 1850s.
Many British coins were once made of silver. Threepence, Groat, Sixpence, Shilling, Florin, Halfcrown, Double Florin, Crown, Maundy Coins amongst others. If you go back in time far enough, even pennies were silver. From 1947 onwards, no British general circulation coin contains any silver.
The British copper Half-Farthing coin was last minted for circulation in 1856 and were demonetised in 1869.
The last British Groat (Fourpence) minted for general circulation was issued in 1888. The Fourpence continues to be minted each year as a part of the annual Maundy Set incorporating the Fourpence, Threepence, Twopence and Penny.
If your asking about the British ten pound note, then it is still in circulation and there are no plans to withdraw it. (February 2009)
All British Groats (Fourpence) minted in the 19th century were made from sterling silver (92.5%).
The dodecagonal brass British Threepence ceased to be legal tender on 31-Aug-1971.
Dick Groat's birth name is Richard Morrow Groat.
The Royal Mint produced no Groats (Fourpence) coins from 1801 to 1835 inclusive.
The British Groat (fourpence) has never been minted with a hole. If somebody has drilled a hole in your Groat or any other coin, it is worthless.