Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Keuffel and Esser -  The Keuffel and Esser Co. also known as K & E was a drafting instrument and supplies company founded in 1867 by German immigrants William J. D. Keuffel and Herman Esser. It was the first American company to specialize in these products.
Answer:
Company