8 cyl distributor caps are three piece brown Bakelite.
6 cyl are conventional tower type black Bakelite.
850X distributor K10312 is Auto-Lite IGP4002A. It has a red tag with IGP4002A stamped into it. Distributor cap is K10410.
850Y, 851, and 852 distributor K10344 is Auto-Lite IGP4002. It has a red tag with IGP4002 stamped into it.
Distributor cap is K10410.
All 6 cyl use distributor K10355, Auto-Lite IGB4318. The condenser K10432 is mounted externally. The condenser wire must have woven cloth covering and not plastic coating. It has a black tag with IGB4318stamped into it.
Distributor cap is K10411.