First two buttons are 1.25”. The first has metal back and bar pin while the second has Pulver paper. First is titled “Worlds Fair Lady/Miss St. Louis 1904.” Sepia and with much color tinting. Second shows “New York City Building.” Both are NM displaying Mint. From 1909 is 1.75” button showing both Hudson and Fulton along with their ships. Two inked initials on the back paper from Marburger, NY. These three are photo plate examples from Hake’s Collectible Pin-Back Buttons section World’s Fairs #’s 215, 229, and 266. Comes with Hake’s COA.