"The model of the Ironclad unit is based on the USS Essex ironclad."@en . . "Ironclad (Civ2)"@en . . "Electricity"@en . . "4"^^ . "Sea"@en . "3"^^ . "Steam Engine"@en . "4"^^ . "60"^^ . "The model of the Ironclad unit is based on the USS Essex ironclad."@en . "4"^^ .