Not known to me, although the lack of a number plate does not help. If the advert is correct about the engine, then it is an October, November or December 1929 car - ie a very early M type chassis. Not a Super Aero (no such model was built) but a Super Sports Aero.
The outside brake lever is non standard but otherwise it looks about right, with the exception of the rear lighting - I don't think one rear light is legal...
I'd be interested to hear how much money he wants as:
a) I've got one from a few months later (April 1930)
b) It's a rare car, 2 speed Super Sports Aero's don't come up very often
