I recently purchased as NOS a Bachmann HO EMD FT-A Southern Railway engine (11712).  Did Bachmann ever offer an FT-B unit for Southern Railway?  I am assuming the item number would 11812 by following the others FT-B's.
I would save me a lot of searching if knew for sure. 

I recently purchased as NOS a Bachmann HO EMD FT-A Southern Railway engine (11712).  Did Bachmann ever offer an FT-B unit for Southern Railway?  I am assuming the item number would 11812 by following the others FT-B's.
I would save me a lot of searching if knew for sure.