Note: These are available in two sizes: 3.5" and 4". Both have adhesive on the front.
The Corsica Sticker Back Story
Sometime prior to the Tour de Corse a decal was applied to the driver's side rear quarter window. The decal came from an event on the Island of Corsica — Association Sportive Automobile, Corsica Groupe Competition.
The car was purchased in the mid ‘70s by a Canadian collector who replaced the window and sold it to another collector. The original quarter window was acquired in the late 1990s with the Corsica decal on it. The provenance of the window and the car with the decal is confirmed through photos published in John Starkey's book, “From R to GT3R” which shows 911R chassis number 911899 005 with the ASA decal on it, in the exact area it was applied to the window.
From the Early 911S Forum, posts by Cris Huergas and Ernie Wilberg