if i may, i would like to hand control to TC.
firstly im at work for another 4 hours and secondly, TC clearly knew which plane it was and the whole area of air ministry spec versus name is a very cloudy issue.
lots of planes are known by spec as well as by type. Some, like the Gloster F5/34, are known ONLY By spec.
however if no pic is posted by the time i get home at 9.30, I do have one ready