I was at a car show on the weekend and a nice MG J2 was there. I noticed the gear pattern was
3 1 R 4 2
So basically backwards of most 4 speed 3 on the floor shifts. The owner says it does cause his issues remembering to go left when changing up from 2nd to 3rd.
I was watching a video about an MG PA yesterday afternoon. (For sale near me and quite tempting!) Robin describes the gate at 3minutes and says the Wolseley Hornet and Rileys were the same.