It is quite possible. These coins are a target for forgers.
The 1893 Two Pound (Double Sovereign) coin should show the "Old veiled bust" of Queen Victoria on the obverse and St. George slaying the dragon on the reverse.
The inscription should read -
"VICTORIA DEI GRA BRITT REGINA FID DEF IND IMP"
The coin is made from 22 carat gold and should weigh 16 grams and be 28.4 mm in diameter.
If in doubt, take your coin to a reputable coin dealer for examination.
There was no British 1888 Five Pound coin minted. The Five Pound coin with the Jubilee portrait of the Queen was only minted for Queen Victoria's Golden Jubilee year of 1887. During her reign the only other dates, with different designs, were 1839 and 1893. A number of forgeries dated 1888 are known.
There was no 1886 British Two Pound coin minted. During the reign of Queen Victoria, they were only minted in 1887 and 1893.
There is a one pound coin and a two pound coin but not a three pound coin.
The British One Pound coin is round.
Such a coin does not exist. The British One Pound coin was first issued in 1983.
There was no 1811 British Sovereign or One Pound coin minted.
There was no 1977 British One Pound coin minted. The first general circulation One Pound coins was minted in 1983.
There was no British 1901 Two Pound or Double Sovereign coin produced.
There has been a British Five Pound coin on and off since 1817. The British decimal Five Pound gold bullion coin was first issued in 1980 and the Five Pound "Crown" coin was first issued in 1990. The current British Five Pound "Crown" coin is intended to be a non-circulating legal tender commemorative coin. The Royal Mint has no current plans to produce a general circulation Five Pound coin in the foreseeable future.
The 1983 One Pound coin was the year of first issue for the British One Pound coin which replaced the One Pound note. The British One Pound coin is legal tender anywhere in the United Kingdom and some of its dependencies.
The British decimal One Pound (nickel brass) coin was first issued in 1983. A gold One Pound coin was issued from about 1489 until 1604.
Currently, British general circulation currency comes in the following denominations - 1 Penny coin 2 Pence coin 5 Pence coin 10 Pence coin 20 Pence coin 50 Pence coin 1 Pound coin 2 Pound coin 5 Pound note 10 Pound note 20 Pound note 50 Pound note