Robert Broderick did a service to our little community with his catalogs and ephemera colection. Thanks!
I checked my Shimano 600 3-Arm crank and it is indeed 95mm BCD.
Now I wonder:
Did Shimano come up with a new BCD all on their own, or did they copy an existing crank?
RH cranks may have been their inspiration. Does anyone know the BCD on Herse cranks?
The CT-Seizan site has a few short 3-arm cranks (http://homepage1.nifty.com/ct-seizan/sub03.html)
including a TA Herse copy
http://homepage1.nifty.com/
early Deore LX's were 3 arm
http://homepage1.nifty.com/
and Shimano XTRs http://homepage1.nifty.com/
This is for a good cause: finding equivalent rings for an on-topic touring crankset.
Amir Avitzur getting in more and more bike trouble in R"G Israel