interior of building a hall, radio kootwijk, the netherlands

1920s antenna architect art assel astronomy bandung building built buurlo cathedral code commission commissioned communication concrete construction contact deco dutch east enigma facade forest hall hallo holland hoog indies interior julius kootwijk long luthmann maria morse mosaic netherlands nnowadays overseas permanent radio reinforced state station technology telegraph telegraphs telegraphsn telegraphsnnowadays telephone then tiles transmission using vintage war was watertower wave world