architectural details: corridor of building a of radio kootwijk, the netherlands

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