Overall: 1 x 1 in. ( 2.5 x 2.5 cm )
Around central image: GRAND ARMY OF THE REPUBLIC 1861 VETERAN 1866
Circular lapel button image of five figures shaking hands in the center, surrounded by text "GRAND ARMY OF THE REPUBLIC 1861 VETERAN 1866"
Due to ongoing research, information about this object is subject to change.