The Suprema Torricelli gold leaf is a true mechanical jewel. This splendid pen features the "Torricelli" filling system, named after the Florentine physicist Evangelista Torricelli, who, in 1644 , conceived the principle of the barometer , constructing what is now called the Torricelli tube and identifying the "Torricelli vacuum."
 

 
 Evangelista Torricelli demonstrated that a vacuum can exist in nature and that air has weight, thus putting an end to the age-old philosophical discussions on horror vacui .
 

 
 In the Suprema Torricelli gold leaf, the air contained within the reservoir chamber is expelled by activating an internal piston through the supply channels. This maneuver creates a virtual vacuum and allows the ink, through a final recompression of the reservoir, to completely fill the transparent body.
 

 
 
 
 Handcrafted parts made by turning gold leaf resin, handcrafted by Stipula, with authentic gold leaf additions, and finely lapped until crystalline refraction is achieved piece by piece;
 
 
 "Torricelli" loading with vacuum pump system;
 
 
 24-karat gilding of the metal decorations;
 
 
 Gold-plated stainless steel rod of internal vacuum piston;
 
 
 Ultra-high capacity ink tank;
 
 
 Perfect weight balance both empty and fully loaded;
 
 
 Nib and feeder individually tuned and tested for writing, for each piece; nib dipped in 24-carat gold;
 
 
 For those who choose the 14k gold nib variant: the gold nib is a Stiflex type, laminated and treated for maximum elasticity and tip flexibility; produced entirely in Florence by Stipula master pen makers, using early-century Italian equipment;
 
 
 Pen kept in gift case;
 
 
 Two-year warranty for any manufacturing defect.