What’s a “Hornaffe”?
According to Jacob and Wilhelm Grimm’s German dictionary, the “Hornaffe” is “eine art gebäck, in gestalt zweier aneinandergefügter hörner, anderswo in bretzelgestalt” [a kind of pastry, in the shape of two horns joined together, elsewhere in the shape of a bretzel], as well as a “triangulum, ein zwickel zwischen den fensterscheiben.” [triangulum, a gusset between the window panes]  The latter refers to the small glass triangles that fill the space between the round bullseyes in windows. As a glass product and as a Hessian-Thuringian pastry speciality, the “Hornaffe” is the inspiration for important allusions as well as for curious and spectacular findings. Here we present interesting and worthwhile facts from the whole world of glass.
“Hornaffe”, see: Jacob Grimm und Wilhelm Grimm, Deutsches Wörterbuch, URL: http://www.woerterbuchnetz.de/cgi-bin/WBNetz/wbgui_py?sigle=DWB&lemid=GH12429 (accessed 17.02.2019).
Techniques of Venetian Glass Processing
The website of the Corning Museum of Glass displays typical forms and designs of Venetian glass products. Short films explain the production techniques used since the Renaissance.
The London Crystal Palace
The "Crystal Palace", designed for the Great Exhibition in London in 1851 and erected in just 17 weeks; it consisted of 83,600 m² of plate glass.
The Stiftung Preußische Schlösser und Gärten Berlin-Brandenburg and Potsdam Museum - Forum für Kunst und Geschichte present their glass collections on this page. The collectables were produced and decorated in the glassworks of Brandenburg.