Includes September 1, 1853 certificate from C.H. Pond presenting S. Colt as Major Commandant; copy of 1855 speech given at the Institute of Civil Engineers; newspaper clippings and obituary notices; coat-of-arms; Colt family tree; items on murder trial of brother, John Colt; and 1914 articles on celebration of 100th anniversary of Colt's birth (photostat).