Vintage signs are always great collectibles. Signs are symbols of a specific place and time, a little bit of Americana. They bring a sense of nostalgia and perhaps memories of places you have lived or visited. Citco gas signs are very collectible right now. They make great decorations for gas stations, auto shops, and your home garage or basement. The first Citco trademark sign was the green treefoil design first seen in 1940. This was the symbol used when Citco was still a petroleum company. The current Citco gas sign is the 'trimark', as the company refers to this trademark, a distinctive multi-shaded red triangle symbol on a white background. A 60-foot square representation of this has become a landmark in the city of Boston.