ČKD (Českomoravská Kolben-Daněk, 'Czechia-Moravia Kolben-Daněk'; Czech pronunciation: [ˈtʃɛskomorafskaː ˈkolbɛn ˈdaɲɛk]) was one of the largest engineering companies in the former Czechoslovakia and today's Czech Republic. It is famous for the Tatra T3, a tramcar that sold 13,991 units worldwide. Source: Wikipedia (en)