Celtic was a French automobile manufacturer active from 1908 to 1913. Founded by Marcel Caplet, the company initially produced vehicles equipped with four-cylinder engines, despite Caplet's earlier experience in creating three-cylinder engines under the name Triplex as early as 1906. During its brief existence, Celtic offered a range of models, including three distinct 12 horsepower cars in the years 1912 and 1913. The brand's focus on…