Between 1917 and 1924, the former main post office, designed by J. Crouwel jr. was realised in the style of the Amsterdam school, inspired by the work of the Finnish architect Saarinen. The magnificent hall with parabolic arches of yellow vitrified bricks is very impressive indeed. Global accessibility trough postal services is symbolised by the cast statues of the five continents, constructud by H.A. van den Eynde. The sixth image depicts trade and prosperity. Transport via land, sea and air is shown at the entrance. The cloack and the national copast of arms in the glazed tiles on the crosscut walls were created by the Porceleyne Fles.