Offset. Same as TN2018.14.1. Political button showing a black and white photo of McKinley on a gold background with red and white horizontal stripes and blue and white verticle stripes. Back paper reads "The Whitehead & Hoag Co., Newark, N.J. Patented July 17, 1894. April 14, 1896 July 21, 1896." The logo of the Typograpical Union is in the center.
