UK's first two seat Alfa

In view of the non-appearance of the 1.5-litre Alfa Romeos in the 1928 TT; due it was said to there being no two-seaters in this country to comply with the regulations, it is interesting that Mrs Stiles, wife of Mr F W Stiles, MD of Alfa Romeo British Sales Ltd, soon after the TT, drove a s/c 1.5-litre twin-cam two-seater from Milan to London, on Continental plates, in 26 hours. Was this the first catalogue two-seater Alfa Romeo to arrive in the UK?