To get a reasonable valuation on an old New Zealand banknote, you will need to provide the denomination of the note, the serial number, the Chief Cashiers name and possibly any significant design features such as who is the person featured on the front and/or back.
New Zealand pound ended in 1967.
New Zealand pound was created in 1840.
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".
Pound
€1.27
There was no 1948 New Zealand Halfpenny minted.
There was no New Zealand 1949 Threepence minted.
There was no 1948 New Zealand Crown minted.
There were no 1936 New Zealand Shillings minted.
There were no 1943 New Zealand Halfpennies minted.
New Zealand introduced its first paper currency in 1934, the year following the introduction of New Zealands silver coinage. Prior to New Zealand having its own currency, British currency was used along with some Australian currency. New Zealand bankontes earlier than 1934 were often produced by various trading banks. The value of any of these notes would depend greatly on the condition of the banknote and which bank issued it. New Zealand One Pound banknotes from 1923 to 1933 in "Very Good" condition, might get anything from $425 to $1,500 AUD. A reputable coin dealer will be able to give a more accurate valuation.
Please check your note. There were no Reserve Bank of New Zealand One Pound notes issued beginning with serial IM. The name of the Chief Cashier would assist in identyifing your banknote.