PT - JOURNAL ARTICLE AU - Havlíková, Dorota TI - Authentic Windows as a Valuable Part of Early Modern Architectural Monuments Die authentischen Fenster als wertvoller Bestandteil der Architekturdenkmäler aus den Anfängen der modernen Architektur DP - 2020 Jun 15 TA - Staletá Praha PG - 78--95 VI - 36 IP - 1 AID - 10.56112/sp.2020.1.05 IS - 02316056 AB - The article highlights the importance of preserving the original window panes in buildings of Art Nouveau, Symbolism, Modernism and Cubism styles and captures the window design in three buildings by well-known architects of the early decades of the 20th century. Appearance, profiles and colours of these facade elements on selected originals are presented. The impetus for the need to document these windows is the advancing trend of legitimate replacement of the original historic windows with so-called copies. The windows of three buildings in Prague from the period around the First World War are discussed in greater detail: windows of common period production at Procházka Villa in Hradčany or Libra Villa in Vinohrady and unique windows of the Cubist era on an apartment building, one of the Teachers' Houses in the Old Town.