These files are vintage copies of the netscape navigator browser for Linux/x86.
The contents are authenic, although there's damage:

(1) Back then, I hated the long file naming convention netscape used, so I 
    whacked the long names to something shorter. Sorry.
    The original names would have been something like
    netscape-v1.0-export-i486_unknown_linux.tar.gz 

(2) The 1.0, 1.1 and 2.0 packages have been 'opened'.  I had to re-tar-gzip
    what I had in my directory, and so the onwer/group bits will be different.
    All other bits, including the date stamps, are authentic.

-- linas