Help dentifying a Stuart Paterson board

Hi,
I afraid I don't surf....
however, for years I have had a surf board left by my Auzzie mate, that I am needing assisting with what type it is. This board has been signed by Stuart Paterson. My sister did have it hung on her wall, but has since emigrated so has asked me to get rid of it, but isn't sure herself what is it.
Any help identifying it, what a signed board is worth if anything and best place to sell it.
Appreciated any help given.
Thanks
I afraid I don't surf....

Any help identifying it, what a signed board is worth if anything and best place to sell it.
Appreciated any help given.
Thanks