in some ways the epitome of Giugiaro's 'Origami' style of flat planes. 1980s-today – Modern ideas In general, concept cars for Alfa Romeo have generally become production vehicles, after some modification to make them suitable for manufacture, and to provide driver and passenger safety. The Zagato SZ, GTV, and Spider, Brera, and 159 are all good examples of Alfa Romeo's stylistic commitment in this direction. Logos Original logo Alfa Romeo's logo incorporates two heraldic devices traditionally associated with its birthplace, the city of Milan: A red cross, from the emblem of Milan, and the biscione, a big grass snake swallowing a child—emblem of the House of Visconti, rulers of the city in the 14th century. The logo was originally designed in 1910 by a young Italian draughtsman from the A.L.F.A. technical office, Romano Cattaneo. Origin In June 1910, the Società Anonima Darracq became Anonima Lombarda Fabbrica Automobili, and was readying its first model, the 24 HP. The board asked chief engineer Giuseppe Merosi to devise a badge for the radiator shell of the new car; Merosi turned to his collaborators. One of them, Cattaneo, was inspired by the coat of arms he had seen on the gates of Castello Sforzesco to include the biscione in the logo. Merosi liked the idea, and together with Cattaneo came up with a sketch, then approved by managing director Ugo Stella; Cattaneo was entrusted with doing the final design. The original badge was round, of enamelled brass, measuring in diameter, and carried already all the present day accoutrements: the red cross on a white field of Milan on the left, a green biscione on a light blue field on the right, all surrounded by a blue ring inscribed with the words "ALFA" at the top and "MILANO" at the bottom. In honour of the King of Italy, the two words were separated by two figure-eight knots—named Savoy knots in Italian, and symbols of the then-reigning House of Savoy. Originally solid brass, the lettering was changed to white enamel in 1913. In 1918, after the company had been bought by Nicola Romeo, the wording "ALFA" was replaced with "ALFA-ROMEO". In 1925, to commemorate the victory of the Alfa Romeo P2 in the inaugural World Manufacturers' Championship of 1925, a silver metal laurel wreath was added around the badge, used (in varying form) until 1982. The addition of the wreath had enlarged the badge to diameter;