In my IBM experience, I can personally confirm the
existence of the
following colors:
OK, I forgot grey. Anyway, these five or six colors were the standards
for IBMs in the late 1960s thru the 80s. Certainly IBM charged a premium
for straying outside the bounds.
Also, it appears that the old IBM stuff did get repainted, probably when
the stuff came off lease and was to be sent to another customer. My
3340N1 is blue now but used to be yellow. Others have also run into
repainted panels.
William Donzelli
aw288(a)osfn.org