1924 Alfa Romeo P2 Nicola and engineers

Nicola Romeo in 1924 Alfa Romeo P2, a new racing car they made this year. Behind the cloverleaf is Giuseppe Campari (suit and caps), to his right are engineers Luigi Bazzi (leaning on radiator) and Giulio Ramponi, both in their working overalls.Location is unknown, but the shape of the roofs look similar to the Portello plant (Alfa Romeo factory).Time is unknown. One source states: "The first engine was bench tested in March 1924 and the first car completed in early June (2 June:[1]); in all six were produced. After initial tests at Monza the car was run over the Parma-Poggio de Berceto road course by team drivers Giuseppe Campari and Antonio Ascari, but the car won at Cremona on 9 June 1924"[2] Ascari (winner at Cremona) is not in this picture. May/June 1924?