Smallest buttons are 7/8” and largest 1.5”. All but the last for “Minneapolis/Molene” which is from 1940 are from the early 1900s-1920. The steam tractor pair have company name on the back along with “Power Farming Machinery La Porte Indiana.” Slight bend on one of the two stickpins but minor. There is also a brass stickpin for “J.I. Case Threshing Machine Co.” and all three stickpins have Mint luster. The “Milwaukee Harvester” button has a few small faint age marks on the edge but all other items are clean and Exc. to NM. Many scarce to rare.