Republican overprinted Stamps. 1937 Ávila-Barco de Ávila.
Republican overprinted Stamps. 1937 Ávila-Barco de Ávila.
Republican overprinted Stamps. 1937 Burgos-Brussels (Belgium).
Republican overprinted Stamps. 1937 Ávila-Barco de Ávila.
Republican overprinted Stamps.