The general rules for the /pub/pictures part of ftp.sunet.se are as follows:

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[ICO]NameLast modifiedSize

[PARENTDIR]Parent Directory  -
[TXT]dolphin2.txt1994-08-30 15:40 137
[IMG]dolphin2.jpg1994-08-30 15:40 69K
[IMG]dolphin.jpg1994-05-03 01:50 30K
[IMG]allofus.gif1993-04-16 09:27 90K

Apache/2.4.62 (Unix) Server at ftp.acc.umu.se Port 443