Famous signatures?

Question

what do signatures of famous people usually go for? i have signatures from tony blair, fredrick jackson, patti auston, and a whole lot of others my uncle told me that a few could be sold for a couple thousands and i wanted to get the advice and opinions of anyone else who knew this field.

Answer 1

I worked as a personal tailor for Brioni and while there I got Pierce Brosnans, Keifer Sutherland, Donald Sutherland, Heath Ledger,  Jack Nicholson amongst others

I've also been for an all expenses paid meal and drink up with the soltan of Brunei.

Talking of signatures, Peter Schmeichel card was declined and I kept his transaction  for a while. Thoght it was funny as he earnt about 50'000 pounds a week at the time

Answer 2

John Hancock? The biggest signature??