Complex sentence: Hamer Guitars is an American manufacturer that specializes in the production of high quality guitars.Founded in Illinois by guitar designer Jol Dantzig and business partner Paul Hamer in 1973 and early instruments featured guitar designs created by Dantzig.
Split into simpler sentences: Hamer Guitars is an American manufacturer that specializes in the production of high quality guitars. It was founded in Illinois by Jol Dantzig and business partner Paul Hamer in 1973 and early instruments featured designs created by Dantzig.