AGV Demon Top Vent Scratch-Resistant Shield (IRIDIUM GOLD) A.G.V. is an acronym that stands for Amisano Gino Valenza. Gino Amisano is the founder of the company, and Valenza Po is the city in which AGV came to life in 1947. The logo is nothing other than "Ago"'s helmet as seen from behind. Or rather, the way so many riders would see it while being beaten by the Italian champion.