Twin directories of tso:

[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/nightly.5/kermit/old/misc/tso/
[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/snapshot_for_backup.78/kermit/old/misc/tso/
[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/nightly.4/kermit/old/misc/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/Softwave/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/smdc/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/software/tso/m3289/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/software/tso/m3291/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/software/tso/m3295/tso/
[DIR]  ftp://ftp.mathematik.uni-marburg.de/pub/mirror/tyan/software/tso/
[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/nightly.3/kermit/old/misc/tso/
[DIR]  ftp://ftp.cc.gatech.edu/pub/tso/
[DIR]  ftp://ftp.uga.edu/pub/tso/
[DIR]  ftp://159.153.229.114/nordic/filmer/tso/
[DIR]  ftp://159.153.229.114/support/misc/tso/
[DIR]  ftp://159.153.229.115/nordic/filmer/tso/
[DIR]  ftp://159.153.229.115/support/misc/tso/
[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/nightly.0/kermit/old/misc/tso/
[DIR]  ftp://ftp.columbia.edu/pub/.snapshot/nightly.1/kermit/old/misc/tso/
[DIR]  ftp://ftp.columbia.edu/pub/kermit/old/misc/tso/
[DIR]  ftp://192.87.102.42/vol/4/kermit/old/misc/tso/
[DIR]  ftp://192.87.102.43/vol/4/kermit/old/misc/tso/
[DIR]  ftp://203.16.234.85/pub/ea/misc/tso/
[DIR]  ftp://192.87.102.43/vol/3/kermit/old/misc/tso/
[DIR]  ftp://192.87.102.42/vol/3/kermit/old/misc/tso/