Originally Posted by Landroger
It was essentially a Series IIa 88", with shortened axles and some of the weight removed. They are still lumpy old things though.
In its final incarnation, it was the Srs 3. That narrower frame and shorter axles certainly makes replacement parts that bit dearer.
Beverley and Argosy: I'd always been given to understand that it was to fit inside the Andover C1.