These small line ads are from Fedco Porcelain Co., Empire China Works, J.H. Parker & Sons, Lapp Insulators, American Electric Works, and a small Hemingray one showing three styles. Some of these are so small in the magazines you would have to use binoculars to view them. One problem you have is when you try to blow them up it distorts the image and wording. Must have had good eyes back in those days.