In article ,
says...

MJC wrote:

I hope you guys enjoy this ancient specification writen by someone at my
old employer, a computer manufacturer once upon a time...

https://www.dropbox.com/s/pagmxe035p...ERIES.mht?dl=0

Looks like a load of old balls to me.

Yes, if you know about the theorem about combing a hairy ball the whole
thing seems less convincing!

Mike.