And don't forget the numbers used by other MFG's..
Williams #843 prewar version w/doghouse overhang
MTH #520 Postwar version w/doghouse overhang & Ps2
https://www.youtube.com/watch?v=XwFXrFvFH4Y
3rd Rail Prewar version #1164 Prewar w/doghouse overhang
3rd Rail Postwar version #762 w/ Doghouse overhang