Comment Re:What does "rare" mean here, and other issues (Score 3, Informative) 140
I have a book that is one of 1000 ever printed. It has both ISBN 10 and ISBN 13 numbers.
It was a vanity project (a coffee table book) by the CEO of a public company - it was published under the banner of the company he ran, despite having absolutely no connection to the business of that company. Nevertheless, it's a historic record.
I doubt there are many of these books left.