magic(5) on FreeBSD
The text 1050010cdee9, as FreeBSD 4.11-RELEASE, FreeBSD 4.10-RELEASE, FreeBSD 4.9-RELEASE, FreeBSD 4.8-RELEASE shipped it.
file command's magic number file
The text 1050010cdee9, as FreeBSD 4.11-RELEASE, FreeBSD 4.10-RELEASE, FreeBSD 4.9-RELEASE, FreeBSD 4.8-RELEASE shipped it.
file command's magic number file