Gottwald And His Possible Successor -- Klement Gottwald, former President Czechoslovakia, who died here recently aged 56, after a two-day illness, is seen here (left), dressed in a minor's uniform, with (center) Premier Antonin Zapotocky - the man who may be his successor - talking with members of the Czechoslovakian Union of Youth; future miner apprentices. It is not yet clear whether Zapotocky, or some other leader, will either succeed Gottwald as President; or will head a Council of Ministers