An Australian 1953 One Pound note (Coombs/Wilson), uncirculated and in absolute mint condition could fetch up to $375 AUD. If it has been circulated, but still in good condition, it might fetch anything from $20 up to $160 AUD.
If it is a star note, uncirculated and in absolute mint condition could fetch up to $43,750 AUD. If it has been circulated, but still in good condition, it might fetch anything from $675 up to $9,750 AUD.
A reputable coin dealer will be able to give a more accurate valuation.
We'll need more information to answer your question - what ARE the signatures on the note if they're not Coombs and Wilson. What condition is the note in and what is the serial number? What designs are on the note?
An Australian 1960 Five Pound note (Coombs/Wilson - Serial TC), uncirculated and in absolute mint condition could fetch up to $1,050 AUD. If it has been circulated but still in good condition, it might fetch anything from $32 to $350 AUD. A reputable coin dealer will be able to give a more accurate valuation.
A 1952 Australian 10 Shilling note (Coombs/Wilson)(depending on the serial number), uncirculated and in absolute mint condition could fetch up to $2,000 AUD. If it has been circulated but still in good condition, it might fetch anything from $50 to $725 AUD. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1966 One Dollar note (Coombs/Wilson - Serial AAB), uncirculated and in absolute mint condition could fetch anything up to $100 AUD. If it has been circulated but still in good condition, it might fetch anything from $10 to $32 AUD. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1954 to 1961 Ten Shilling note (Coombs/Wilson)(depending on the serial number), uncirculated and in absolute mint condition could fetch anything from $400 up to $32,500 AUD. If it has been circulated but still in good condition, it might fetch anything from $25 to $18,500 AUD. A reputable coin dealer will be able to give a more accurate valuation.
A Commonwealth of Australia 1967 One Dollar note (Coombs/Wilson), uncirculated and in absolute mint condition could fetch up to $90 AUD. If it has been circulated but still in good condition, it might fetch anything from $10 to $32 AUD. A reputable coin dealer will be able to give a more accurate valuation.
There were no Australian 1934 Five Pound notes printed. An Australian 1933 pattern Five Pound note (Riddle/Sheehan), uncirculated and in absolute mint condition could fetch up to $42,000 AUD. If it has been circulated but still in good condition, it might fetch anything from $675 to $12,000 AUD. A reputable coin dealer will be able to give a more accurate valuation.
An Australian Ten Shilling "Star" note (Coombs/Wilson)(serial AE), uncirculated and in absolute mint condition could fetch anything up to $76,000 AUD. If it has been circulated but still in good condition, it might fetch anything from $1,200 to $19,500 AUD. A reputable coin dealer will be able to give a more accurate valuation.
A Commonwealth of Australia 1954 Ten Shilling note (Coombs/Wilson)(serial AC to AF), uncirculated and in absolute mint condition could fetch up to $600 AUD. If it has been circulated but still in good condition, it might fetch anything from $30 to $275 AUD. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1966 One Dollar note (Coombs/Wilson), uncirculated and in absolute mint condition could fetch up to $100 AUD. If it has circulated but still in good condition, it might fetch anything from $ 10 to $32 AUD. If it is the first or last of a serial number range, or a Star note, the value will increase dramatically. The Australian One Dollar note is no longer in circulation. A reputable coin dealer will be able to give a more accurate valuation.
A Commonwealth of Australia 10 Shilling note signed by H C Coombs and Roland Wilson were issued in 1952 and 1954 as the Commonwealth Bank of Australia, and in 1961 as the Reserve Bank of Australia. A Commonwealth of Australia 1952 Ten Shilling note (Coombs/Wilson)(serial number A/7 to B/49), uncirculated and in absolute mint condition could fetch anything up to $1,800 AUD. If it has been circulated but still in good condition, it might fetch anything from $50 to $725 AUD. A Commonwealth of Australia 1954 Ten Shilling note (Coombs/Wilson)(serial number AC/00 to AF/19), uncirculated and in absolute mint condition could fetch anything up to $600 AUD. If it has been circulated but still in good condition, it might fetch anything from $30 to $275 AUD. A Commonwealth of Australia 1961 Ten Shilling note (Coombs/Wilson)(serial number AF/20 to AH/65), uncirculated and in absolute mint condition could fetch anything up to $425 AUD. If it has been circulated but still in good condition, it might fetch anything from $25 to $210 AUD. A reputable coin dealer will be able to give a more accurate valuation.
A Commonwealth of Australia 1966 Ten Dollar note (Coombs/Wilson)(serial SAA to SDR), uncirculated and in absolute mint condition could fetch up to $110 AUD. If it has been circulated but still in good condition, it might fetch anything from $18 to $50 AUD. A reputable coin dealer will be able to give a more accurate valuation.