This is a very attractive non-excavated coat size Civil War era uniform button for the state of Massachusetts. It has the famous arm and sword design of Massachusetts on the face of the button. This one has the original back and shank intact with the "WATERBURY BUTTON CO. WATERBURY CON.". As they state about this particular version in Tice's book, it is one that was made after the Civil War. If you want the complete set of Civil War era MS buttons this one needs to be included though. It has lots of the original gold wash still present down in the recesses and it gives it a wonderful look. This is the pattern listed as MS 35 in Albert's button book and MS210F4 in Tice's button book. This is a fine non-excavated slightly post Civil War Massachusetts Coat Button from the Waterbury Button Company.