The One Pound note was issued by a large number of different banks across the British Empire for at about 80 years. Most of these have some value for collectors and in some rare cases, very large values.
The valuation would depend on the country of issue, the date of issue and the condition. Many British banknotes are undated, so a description would have to be provided.
The most recent English One Pound note (1983) is worth about $6 in mint uncirculated condition. The Blue/Pink English notes used during WWII are worth about $25 in uncirculated, dropping to $10 in very good used condition. Non-English notes are mostly worth more and the most valuable are generally the ones issued by the Falkland Islands, because of the small number printed.
The first British Fifty Pound note was issued in 1725.
There was no 1891 British Two Pound coin issued.
The Royal Mint issued no gold Two Pound coins from 1938 to 1952 inclusive.
Such a coin does not exist. The British One Pound coin was first issued in 1983.
The last British One Pound note was issued in 1984. The One Pound note ceased to be Legal Tender in 1988.
The term "pound" to describe a British monetary value has been in use for hundreds of years, but there was no official coin or banknote to the value of "One Pound" and called "One Pound" issued until much more recently. The modern Sovereign (with a face value of a One Pound or 20 Shillings) was reintroduced into the British currency in 1817. The first British coin with a "Pound" denomination ascribed to it was the 1820 Five Pound gold coin. The Bank of England produced One Pound notes periodically from 1797 to 1821. The first official regular issue of British One Pound note, which was actually a Treasury Note, was first issued in 1914. The first British decimal One Pound coin was issued in 1983.
The first gold Fifty Pound coin issued by the Royal Mint was in 1987.
around 1 great british pound
One Pound British in 1860 had the purchasing power of about £63.10 GBP in 2010. This is an approximation based on the value of the pound in 1860 and the value of the pound in 2010, factoring for inflation.
There were no British commemorative One or Two Pound coins issued in 1993. The coin you possibly refer to is the Five Pound coin commemorating the 40th Anniversary of the Coronation of Queen Elizabeth II (in 1953).
The English Pound has never been "gold covered". The British One Pound coin issued since 1984 is made from a nickel-brass alloy giving it a gold coloured appearance. The Sovereign coin, issued since 1817, has a face value of One Pound and is made from 22 carat gold.
A British Pound in 1799 had the purchasing power of about £62.87 GBP today.