You have omitted the first 3 or 4 characters of the serial number and not provided the name of the Chief Cashier.
Modern Bank of England One Pound notes were issued from 1928 to 1984.
Please narrow down the possibilities a lot.
You have not provided a serial number or a place of issue, but you potentially have a note of value.
Without knowing the serial number, your 1952 Bank of England white Five Pound note could fetch up to £200 GBP in mint condition. The Chief Cashier was P.S. Beale.
The banknote you describe does not exist. G.M. Gill was Chief Cashier of the Bank of England from 1988 to 1991. Please submit a new question including the serial number of the note.
The Bank of England currently issues Five Pound, Ten Pound, Twenty Pound and Fifty Pound notes for Britain, plus a variety of banknotes for a number of other countries.
Please check your note. There were no Chief Cashier T P Hanna New Zealand Five Pound notes issued with a serial number commencing with "S".
The Bank of England series D "blue" Five Pound note featuring the Duke of Wellington on the reverse, ceased to be legal tender in 1991. The last serial number range to be used for these notes was SE90. These were most likely issued for collectors as part of a "first and last" set rather than as general circulation notes. The Chief Cashier was G.M. Gill. The group of six digits following the SE90 will probably never be known.
Because it is a long withdrawn banknote, the Bank of England will honour it to the value of Fifty Pounds. As far as any collector value is concerned, it would depend on the Chief Cashier, serial number and condition of the note.
A Bank of England white Five Pound note (Chief Cashier L.K. O'Brien)(serial A61A), uncirculated and in absolute mint condition could fetch anything up to £200 GBP. If it has been circulated but still in good condition, it might fetch anything from £60 to £140 GBP. A reputable coin dealer will be able to give a more accurate valuation.
A Bank of England One Pound note (Series A - green)(Chief Cashier K.O. Peppiatt - serial D84B), uncirculated and in absolute mint condition could fetch anything up to £20 GBP. If it has been circulated but still in good condition, it might fetch anything from £5 to £10 GBP. A reputable coin dealer will be able to give a more accurate valuation.
A Bank of England One Pound note (Series A - blue)(K.O. Peppiatt - serial W86H), uncirculated and in absolute mint condition could fetch anything up to £25 GBP. If it has been circulated but still in good condition, it might fetch anything from £4 to £12 GBP. A reputable coin dealer will be able to give a more accurate valuation.
A Bank of England One Pound note (Series C - green)((J. B. Page - serial CN to CZ), uncirculated and in absolute mint condition could fetch anything up to £6 GBP. If it has been circulated but still in good condition, it might fetch anything up to £3 GBP. A reputable coin dealer will be able to give a more accurate valuation.
In mid-2002, the Bank of England withdrew a batch of Five Pound notes due to the ink on the serial numbers smudging and being able to be rubbed off.