a small, worn book

Only about seven inches by four, this thick little, leather-bound book appears to be some sort of a diary or journal. Almost all of its yellowed pages have been utterly destroyed. Of those that remain the majority are so badly damaged as to be completely illegible. But a few fragile leaves, some of them whole, and others with but a fragment or the paper clinging to the binding, still bear text in a small, neat script that remains readable despite the deterioration of the pages.

It is a small, worn book.
It weighs half a pound.

You identify a small, worn book.
It is an unsellable object.
It weighs eleven ounces, and it is worth about one celeb.
Its keywords are diary, journal, book, and worn.