<span>Typed letter from Charles F., Jr., to Leeds-Northrup company regarding receipt of Wheat-Stone Bridge recorder, which had a broken galvanometer </span><span>Charles, Jr. shipped back to be fixedCharles F. Brush, Sr., PapersSeries 1: CorrespondenceSubseries 1: Family and Personal (1889-1929)Box 1Folder 6</span>