This third and final Colt's Manufacturing certificate bears the number 10753 and represents 100 shares in the name of Burnham and Company, an investment firm. The dual date (August/December 1953-1955) suggests either a transfer registered on two separate dates, or a replacement certificate issued in 1955 for an original 1953 transaction. The 100 shares represent a lot ten times larger than the Phillips certificate, indicating an institutional transaction rather than an individual purchase. Together, the three Colt's certificates form an exceptional documentary set on the stock-market history of this iconic company, allowing one to follow the evolution of its shareholding between the 1940s and 1955, a crucial period for the American arms industry.