12-01-2012, 10:59 PM
The WM Hammerheads were #192, 193, 194 & 197. The WM RS-3's were #185-198. Looking at photos it seems they were from 3 different "phases" although the number and location of the doors with air filters varied over their lifetimes. The RS-2's were #180-184.
Roger Huber
Roger Huber