"Based on what you described, generally yes. In older days of autograph collecting - when autograph books were more the norm - I think this was a bit more common for people to write the name of the signature. Nowadays, it isn't really done at…"
"To answer your question directly, I think not.
That said, the overall value depends on your signature (rarity or popularity), the buyer and your price. The market for a particular item generally determines your price. There are always potential…"