Yes. The strange looking creature on the reverse of the 1995 and 2000 One Pound coins is described as being a dragon. It is a "heraldic" dragon representing Wales.
The British One Pound coin was first issued in 1983 during the reign of Queen Elizabeth II. Amongst the innumerable things that have never appeared on a British One Pound coin, every king and queen prior to Queen Elizabeth II has never appeared on a British One Pound coin.
No, there is no Scottish One Pound coin. The 1995 and 2000 British £1 coin has the Welsh dragon on the reverse. The 1984 and 1989 British £1 coins have a Scottish design featuring a thistle sprig in a coronet on the reverse.
There is a one pound coin and a two pound coin but not a three pound coin.
The British One Pound coin is round.
To date, no horse has ever appeared on a British One Pound coin. There has been a unicorn as part of the Royal Arms on the 1983, 1993, 1998 and 2003 One Pound coins.
Such a coin does not exist. The British One Pound coin was first issued in 1983.
Charles Darwin was put on the 2009 two pound coin.
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.