AEC Mercury

Evening all, I’m trying to trace the history of an aec mercury which was driven by my father in the 70 s. It belonged to jack poulton and sons based in Hertfordshire and was a 4 wheeler cattle float Rev no bpx96 l. My father left in 79 and all I can remember is she was sold on in 81 or 82. If anyone could help I would be really grateful. There’s some great threads on here, particularly on the marathon, I loved them as a child and always wanted to do Iran for hrs.