Spain. Military Michel 79 , Swedish volunteers in Spain 1936–39. A rare cover from the Swedish volunteer Erik Roland Ekblad in the International Brigade with meter cancel "BARCELONA 9" 21.VII.38 and Spanish postmark 17 JU ...38 to Sweden. Violet censor cancel "VISADO CENSURA MILITAR" and red censor cancel "CENSURA MILITAR" on back. Very rare cover in fine quality.