The image shows a vintage button featuring the Great Seal of the State of Wisconsin. It likely dates back to the Civil War era and was used on uniforms, possibly for the 4th through 8th Wisconsin regiments. The seal depicts elements representing agriculture, mining, manufacturing, and trade, supported by a sailor and a yeoman. The button has a shank on the back for attachment. Markings on the back may include "Scovill Mf'g. Co. Waterbury" or "Superior Quality." Such buttons are collectible items reflecting historical and manufacturing details. The button is made of metal, likely brass, with a gold gilding. It measures around 15-16mm in diameter. These buttons can be found in antique shops, online marketplaces, and historical collections.