The Italian tyre manufacturer was established in 1872. Without clear corporate guidelines on how to use the logo, it appeared in many variations according to what was popular at the time; the logos shown here represent only a small selection.
The elongated P with its clever shift from thick to thin and back was a highly evocative way to portray the elasticity of Pirelli’s premium products.
Although the number of variants diminished progressively after the 1930s stricter rules were sorely needed. In 1945, following WWII, a strong, clear sans-serif logo was created which has remained practically untouched until this day.
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Info via Logo Life: Life Histories of 100 Famous Logos, a new book from BIS Publishers. Via @MatDolphin.