I haven't yet decoded the tape (if it says
anyhthing at all). Luckily I
just got _Computers and Typesetting_ which covers plenty of obscure
typesetting codes (which is the only area I know of in which six-hole tape
ever became popular).
Check out BAUDOT code used for the old mod 15 teleprinters and
reperforators.
those were 5level code with a shift character. Commonly used for TTY
services
like Western Union and Hams.
Allison