Before revision: alt=Photo of USCGC Champlain on patrol circa mid-1930s| USCGC Champlain on patrol in the mid-1930s The second International Conference on Safety of Life at Sea was convened in London on 16 April 1929.
After revision: alt=Photo of on patrol circa mid-1930s| USCGC Champlain on patrol in the mid-1930s The second International Conference on Safety of Life at Sea was convened in London on 16 April 1929.