The APO-Sironar-N line is now discontinued, so does not show on Rodenstock's site, but at one time they offered a complete lineup with both -N and -S designations. Both 210s were in Copal 1 shutters. The much rarer 210mm APO-Sironar-W was in a Copal 3.

The table here

http://www.prograf.ru/rodenstock/lar...en.html#table1

shows the whole line.