original early 20th century old american industrial fully functional screw press possibly designed and fabricated by the challenge machinery co., grand haven, mi. the industrial hand press features a centrally located iron screw shaft retaining the original spoked wheel. the book press is operated by using the coarse screw to convert the rotation of the handle or "drive-wheel" into a small downward movement of greater force. fully functional. brushed metal finish treated with a clear coat lacquer. early riveted joint metal strap repair. measures 15 x 11 x 14 inches.