Squeeze and unsqueeze, from the CPM world.  Works, but "compress" from disk
6 runs almost twice as fast and produces even smaller files.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                10335   22480  46.0% -lh5- 9de4 Jan 22  1986 sq.usq/sq
[generic]                 9454   29007  32.6% -lh5- 9777 Jan 22  1986 sq.usq/sq.c
[generic]                 8624   18880  45.7% -lh5- 0d9e Jan 22  1986 sq.usq/usq
[generic]                 3804   11973  31.8% -lh5- 73f2 Jan 22  1986 sq.usq/usq.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         4 files   32217   82340  39.1%            Jan 22  1987