CNW Power In Color 1963-1995 Vol. 2 Switchers & First Generation Roadswitchers An in-depth look at the CNW's E- and F-unit fleet after 1963 - a time when the road was absorbing the cab units from roads it had acquired like CGW and M&St.L, but also gobbling up the cast-offs from roads like FEC, MKT, B&LE and SP.