FROM CARD: "COLLECTED BY CASEY - CAREY? 7 7/8" DIA., 3/4" DEEP."Incised and carved relief decoration, front and back, including compass-drawn motifs.Donor was the son of Thomas Lincoln Casey Sr. (1831 – 1896) who was a noted American military and civil engineer. Thomas Lincoln Casey Sr. was in command of a detachment of engineer troops in Washington Territory, from November 21, 1859, to April 1861. He moved to Washington, D.C. in 1867. Thomas Casey's father, donor's grandfather, was Silas Casey (1807 – 1882), U. S. Army. Silas Casey was named deputy commander of the Ninth Infantry Regiment when the unit was reformed in 1855. When the unit arrived in Washington Territory, eight companies went east of the Cascades, while Casey took two companies with him to Fort Steilacoom from January 1856 to August 1861. Casey commanded at Camp Pickett during the "Pig War" on San Juan Island, Washington Territory from August 10 to October 18, 1859. Silas Casey went to Victoria, B.C., Canada to parley with the British at one point during the Pig War.