[David_Hayward (RIP)]

Jan, because it's a military vehicle, it could be a "special" using '28 parts in a 1929-supplied lorry (from Trafford Park Plant). I have a few mid-1930s Fordson photos including one with a 6-wheel conversion by Unipower from memory. Some had lhd!

That said I confess I know nothing about the AA series, and little more about the BB series either. Thank you for the new information!