ISBN LOL

This may be a re-use, or maybe just a mistake, but here's an amusing example:

ISBN: 9780823418657

Used on the records for

1. The picture book Pizza for the queen by Nancy Castaldo, illustrated by Melisande Potter
2. The government document Aviation security : next steps : field hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, first session, December 10, 2001

We have the first in our collection, but not the second.