On October 1, 1931 the Dutch Postal Services issued a pair of semi-postal stamps featuring stained glass windows of the Sint Janskerk Church in Gouda and detail images of the repair methods used for their restoration. This church has more original sixteenth-century stained glass than any other church in the world. Under the direction of the progressive director of the Dutch Postal Services Jean F. van Royen the stamps were designed by the famed modernist graphic designer/typographer Piet Zwart using photomontage.
