Gothic tracery 

This pencil drawing by Karl Ballenberger, a German architect and draftsman, depicts a detailed study of Gothic tracery, a defining feature of Gothic architecture. This particular design, likely from the 19th century, showcases the intricate patterns and structural elements common to Gothic vaulted ceilings. The drawing's delicate lines capture the complex interlacing of arches and ribs, highlighting the architectural mastery of the period. The inscription "Im H. Geist zu München" indicates that this design was intended for the Holy Spirit Church in Munich, Germany. This drawing stands as a testament to Ballenberger's keen eye for detail and his appreciation for the artistry of Gothic design.