Eversharp is an American brand of writing implements founded by Charles Rood Keeran in 1913 and marketed by Keeran & Co., based in Chicago. Keeran commercialised Eversharp mechanical pencils (manufactured by two companies, Heath and Wahl), then expanding to fountain pens when the company was acquired by the Wahl Adding Machine Co. in 1916 and it was named "Wahl-Eversharp". The company continued until 1957 when it was acquired by Parker Pen, which continued to use the Eversharp brand for a time.