This SAILDART content blob sn#139577 has 4 filenames:

1975-01-08 14:59	YY.1[1,DBX]
1976-10-07 20:39	BACKUP.TMP[MIX,SYS]1
1979-05-21 12:30	BACKUP.TMP[DOC,RWW]9
1979-09-13 16:57	BACKUP.TMP[M,CG]1

This blob is marked generic text, type T, neo UTF8
Octal listing of 1 PDP-10 words: