Octalink V0 ??

[nfmisso]

I am taking apart my World Tourist BB (1985 vintage); and pull off the cranks, expecting the find the standard square taper, but find:

[attachment=2872]

Fifteen years or so before Octalink V1.....

[nfmisso]

This link was provided by painkiller
http://www.sheldonbrown.com/shimano1982/pages/35.html

It was called OCTA Joint Crank.