day, the newspaper was printed by the hot lead method. Type was set on a linotype using molten lead or by hand from cases full of individual letters. Illustrations for ads were poured using mats as molds. This continued for over fifty years, with the addition of an engraver for photographs, until Dick David bought electronic type-setting equipment that allowed the newspaper to be printed by the offset method. The equipment was updated, and a darkroom installed, carrying the newspaper into the 1980s when the Ajo Copper News finally entered the era of typesetting on computers. Some of the old type cases and a proof press can be seen at the Ajo Historical Society Museum. When Dick & Ann David bought the newspaper, it was located on Pizal where a tiny park is now situated. They moved to 33 Plaza in the 1970s. The newspaper offices stayed there until October 1995 when Hop David and Gabrielle David purchased the building at 10 Pajaro where the newspaper offices are now located. Most of this history appeared in the 90th anniversary issue of the Ajo Copper News in April 2006. Used with permission. External links Newspapers published in Arizona 1916 establishments in Arizona