by Benjamin Wilson in 1865. https://app.box.com/s/et4h5qhkcf2itcp8nv22/1/1889757667 In 1952 the copyright to the Diaglott expired and it fell into the public domain. After Wilson's death in 1900, the plates and copyright were inherited by his heirs. Charles Taze Russell, then president of the Watch Tower Bible and Tract Society, approached Wilson's family via a third party and obtained the copyright, and at some later point, the plates. The Society published the Diaglott in 1902, and later had the type reset for publication on its own presses in 1927, with an additional printing in 1942.[3] https://en.wikipedia.org/wiki/Emphatic_Diaglott
You don't see the attached files ? DIA.epub ? I have also a good copy in PDF with bookmark, and the word tot word greck to english text.