This is circa 1896. It is a round lapel button or collar button pin with a picture of Madame Martinot on the front and the back inside reads: Sweet Corporal Cigarettes - Buttones Made by the Whitehead Hoag Co., Newark, N. J. Pat July 21 1896 Pat July 17 1894 Pat April 14 1896. The pin is very old and the back shows some deterioration. It measures 7/8" in Diameter. ENJOY!