prior ro rhs allowing Serial Numbers MODEL SERIAL N0 MODEL SERML N0 MODEL SERIAL N0 2306W Six 2306X V8 2406Y Six 2306 V8 2406X Six 2406Y ... beginning with the following Serial Numbers MGDEL SERIAL N0 MODEL SERIAL N0 MODEL SERIAL NO 2306W Sin 2306X V0 2406Y Six 2306W VS 2406X Six 2406Y VB 2406W