Ten (10) early 20th c. Union Pinback Buttons, some rare. 1st item: Socialist 1917 button "In Aid of St. Louis Strikers". A strike in 1917 was led primarily by white employees who blamed newly arrived black workers for their misfortunes. Tensions rose until a violent and deadly July 2, 1917 riot. 2nd item: 1915 "I Helped 8 Hour Becker Brainard Strikers" button. Becker Brainard was a milling machine company in Massachusetts making munitions for WW1, when a strike was called on July 29, 1915. 3rd item: "8 Hour Day" Rail Workers button, supporting Brotherhood of Railway Trainmen, Brotherhood of Locomotive Engineers, Brotherhood of Locomotive Firemen and Enginemen and Order of Railway Conductors. 4th-7th items: Four (4) striker buttons, including "We Walk for Justice", "I Helped Hyde Park Strikers", "Don't be a Scab" and " Vice Pres. T.L. Wilson", all with backpapers. 8th-10th items: Three (3) "Vote No" small striker buttons. All within size range 7/8" - 1 1/4" dia. Early 20th century. (Additional high-resolution photos are available at www.caseantiques.com.)