The Alfa Romeo racing team at Monza for the Italian GP on 19 October 1924, where they took the four top places with Alfa Romeo P2.<a class="external autonumber" href="https://en.wikipedia.org/wiki/1924_Italian_Grand_Prix">[1]</a> From left: Vittorio Jano (engine designer/engineer), Luigi Bazzi (mechanic in white dress), Eugenio Siena (?), Angelo Guatta (says <a rel="nofollow" class="external autonumber" href="http://spitzleyzagari.com/artist/dr-ferruccio-testi">[2]</a>), Ferdinando Minoia (back, driver 4th place), Giulio Ramponi (mechanic), Giuseppe Campari (driver, 3rd place), unknown, Antonio Ascari (driver, winner), unknown, Louis Wagner (driver, 2nd place), Arturo Mercanti (older man, does not really look like Mercanti...), unknown, Nicola Romeo (team owner), unknown and unknown (glasses, older man; it is NOT Giuseppe Merosi who was a very tall man!) at far right.
Unknown photographer It may be Ferruccio Testi (very similar picture: <a rel="nofollow" class="external autonumber" href="http://spitzleyzagari.com/artist/dr-ferruccio-testi">[4]</a>)
<a rel="nofollow" class="external autonumber" href="https://i1.wp.com/viaretro.com/wp-content/uploads/2014/03/giulioramponi05.jpg?w=1024&amp;ssl=1">[3]</a>