How do you use the word autograph as a noun?

The noun 'autograph' can function as the subject of a sentence or a clause, and as the object of a verb or a preposition.

Examples:

The autograph is not genuine. (subject of the sentence)

The price that the autograph sold for was far out of my range. (subject of the relative clause)

The book has the autograph of the author. (direct object of the verb 'has')

She's going to ask him for his autograph. (object of the preposition 'for')