The ten stars represent the number of states in which women had full suffrage at the time it was made -- Wyoming (1869), Colorado (1893), Utah (1896), Idaho (1896), Washington (1910), California (1911), Kansas, Oregon and Arizona (all 1912), and Montana (1914).
“Votes for Women” was one of the most popular and recognizable slogans used by members of the woman’s suffrage movement.