ftp://ftp.uniovi.es/pub/X11R6/graphics/misc/lock/xscreensaver-1.22.tar.gz
-rw-r--r-- 1 zblaxell zblaxell 125136 Jul 10  1994 xscreensaver-1.22.tar.gz
22d23c52eeb73529c798c184039202d0834f40e8  xscreensaver-1.22.tar.gz

http://x.cybermirror.org/R5contrib/xscreensaver-1.21.tar.Z
-rw-r--r-- 1 zblaxell zblaxell 205361 Nov 27  1993 xscreensaver-1.21.tar.Z
ceaa79e452bea631871bbee9851bc1767e64f837  xscreensaver-1.21.tar.Z

ftp://ftp.zenez.com/pub/SCO/Skunk96/UnixWare/FreeBird/x11/utils/xscreensaver-1.18.src.tar.Z
-rw-r--r-- 1 zblaxell zblaxell 223601 Feb 27 13:58 xscreensaver-1.18.src.tar.Z
8f6a59ffb01673cb52775361dae56fe1c86e47ef  xscreensaver-1.18.src.tar.Z

ftp://ftp.ntnu.no/old/pub/X11/R5contrib/xscreensaver-1.17.tar.gz
-rw-r--r-- 1 zblaxell zblaxell 108551 Feb 27 14:00 xscreensaver-1.17.tar.gz
db81f5a260a152f79d884bcf855c7cf287e32b0f  xscreensaver-1.17.tar.gz

In the beginning...