New Zealand Ten Shilling notes (Chief Cashier - T.P. Hanna) will have serial numbers as follows -
Number over letter - 0/J to 3/H
Number over date - 0/47 to 5/54
The date represents the last two digits of the year (1947 to 1954).
Letter over number - A/0 to A/5
T.P. Hanna was Chief Cashier from 1940 to 1956.
For a valuation on any New Zealand banknote, the denomination, design, Chief Cashier and/or Governor and Serial Number would need to be known.
Might your Ten Shilling note possibly a Reserve Bank of New Zealand note, and the Chief Cashier R.N. Fleming?
A New Zealand Ten Shilling note (Issue 2)(Chief Cashier T.P. Hanna - depending on the serial number and the format of the serial number), uncirculated and in absolute mint condition could fetch anything from $800 up to $1,600 NZD. If it has been circulated but still in good condition, it might fetch anything from $50 to $600 NZD. A reputable coin dealer will be able to give a more accurate valuation.
A Reserve Bank of New Zealand Ten Shilling note (Issue 2)(Chief Cashier R.N. Fleming - serial 9J - with security thread), uncirculated and in absolute mint condition could fetch anything up to $150 NZD. If it has been circulated but still in good condition, it might fetch anything from $18 to $75 NZD. A reputable coin dealer will be able to give a more accurate valuation.
If your Ten Shilling note has Queen Elizabeth II on the obverse and a large image of a seated left facing Britannia on the reverse, a serial number commencing with S74 would be Chief Cashier J.Q. Hollom, possibly printed in 1963.
A New Zealand Ten Shilling note (Issue 2 - Serial 6S - Chief Cashier R. N. Fleming), uncirculated and in absolute mint condition could fetch anything up to $150 NZD. If it has been circulated but still in good condition, it might fetch anything from $18 to $65 NZD. A reputable coin dealer will be able to give a more accurate valuation.
A Reserve Bank of New Zealand Ten Shilling note (Issue 2)(Chief Cashier R.N. Fleming - serial 9K), uncirculated and in absolute mint condition could fetch anything up to $150 NZD. If it has been circulated but still in good condition, it might fetch anything from $18 to $65 NZD. A reputable coin dealer will be able to give a more accurate valuation.
a very rare banknote, worth upwards of £10000
A Reserve Bank of New Zealand Ten Shilling note (Issue 2 - Serial 1L - Chief Cashier R. N. Fleming), uncirculated and in absolute mint condition could fetch anything up to $160 NZD. If it has been circulated but still in good condition, it might fetch anything from $18 to $65 NZD. A reputable coin dealer will be able to give a more accurate valuation.
A Reserve Bank of New Zealand Ten Shilling note (Issue 2 - Serial 4L - Chief Cashier R. N. Fleming), uncirculated and in absolute mint condition could fetch anything up to $150 NZD. If it has been circulated but still in good condition, it might fetch anything from $18 to $75 NZD. A reputable coin dealer will be able to give a more accurate valuation.
Please check the serial number and provide the name of the Chief Cashier if possible.
A Reserve Bank of New Zealand Ten Shilling note (Issue 2)(Chief Cashier T.P. Hanna - serial 2J - number over letter), uncirculated and in absolute mint condition could fetch anything up to $800 NZD. If it has been circulated but still in good condition, it might fetch anything from $30 to $300 NZD. A reputable coin dealer will be able to give a more accurate valuation.