With very few exceptions, there is no way to recognise a valuable banknote by just looking at it.
The exceptions are usually, any first or last of a series with all digits the same, eg. A01A 000000.
Value comes with rarity and/or age, or some peculiarity with the banknote that might make it a collectable. You are going to have to work for it.
You need to be able to identify your note properly, including such detail as the design, the Chief Cashiers signature and the Bank that issued it, the serial number if applicable and the colour and font of the serial number, the date if applicable, whether or not it has a watermark and what the watermark is, variations in the colour, whether or not it has a metallic strip and where the strip is located on the note, even whether or not it might be a forgery, and last but not least, the condition of the banknote.
Condition is all important since no collector will part with large sums of money for a mutilated banknote unless it is the only one known to exist.
Armed with the details previously mentioned and anything else you can find out about your banknote, get hold of a banknote catalogue from your local library and try to match your banknote up with something in the catalogue. Most good catalogues will also contain an article on the grading of notes.
When you think you might have something of value, take it along to your local reputable coin dealer for a valuation.
£1 notes are still in circulation in Scotland although it is rare to come across one. They are printed by the Royal Bank of Scotland, which is the only Scottish bank still to print £1 notes, albeit in very small quantities.
will the NatWest bank change my saved old 20 pound notes if I am one of their customers
Pepper was so valuable at one point in history, that one pound of pepper was equivalent in value to one pound of gold.
St George appears on many different British pre-1960 One Pound notes, incuding H.M. Treasury notes and Bank of England notes. Pinning it down to a particular One Pound note would require the name of the Chief Cashier.
The Bank of England does not produce One Pound notes, and has not done so since 1984. Between 1960 and 1984, however, the watermark was a portrait of Queen Elizabeth II facing right.
Magwitch used the two one-pound notes that Pip had given him to purchase new clothes and supplies to help him evade capture and escape from England.
The Bank of England One Pound was last issued in 1984 and was withdrawn in 1988 after the introduction of the One Pound coin in 1983.
The "Pound", as a circulating unit of currency, was first issued by the Bank of England in 1797. They did not last very long and were superceded by the gold Sovereign in 1817. The first regular issue of One Pound notes was by His Majesty's Treasury in 1914. The Bank of England resumed the minting of the One Pound note in 1928.
The One Pound note was last issued in 1984 - and ceased to be legal tender in 1988. The pound coin replaced the £1 note in 1983.
Well each note no matter what the denomination weighs one gram.There are 454 grams to a pound. So one pound would have 454 notes. greg_moore1@hotmail.com$1.51
Current Bank of England banknotes include the Five, Ten, Twenty and Fifty Pound notes. Prior to decimalisation, 20th century Bank of England banknotes included the Ten Shilling, One, Five, Ten, Twenty, Fifty, One Hundred, Two Hundred, Five Hundred and One Thousand Pound notes. The Ten pound and higher notes were discontinued in 1945.
A pound of gold and a pound of cotton weigh the same because they both weigh one pound. The difference lies in their volume and value, as gold is much denser and more valuable than cotton.