There are 5 Models named Ironclad in the database
Ironclad in black enamel finish.
Dates made: Feb. 1909 - 1915
Ironclad in gold finish.
Dates made: Feb. 1909 - 1915
Ironclad in gunmetal finish. Called Bronze in the Westclox 1907 catalog, I believe this is the same thing.
Dates made: Feb. 1909 - 1925
Ironclad in brass finish.
Dates made: 1910 - 1917
Ironclad in nickel plated finish.
Dates made: 1910 - 1918