I have a quality reprint of the 1914 Splitdorf  EU-4 Magneto Installing and Operating Manual. It is 14 pages. The front and back are color. References the EU-4 model. has some pics and descriptions of the mag. Shows construction, care and timing of the mag. It measures 8 1/2" by 11". front and back are heavy card stock . 4 pages are color.  Face stapled. A great addition to any collection.