Leonardo Momento Zero Grande Frosted Pura Fountain Pen - Petrol Blue with Gold Trim penstorage The most recognized one being

The most recognized one being the mass-energy equivalence equation: E=mc2

To match the fountain pen

Weight:  Titanium:

In 1911 something special was created with the Kaweco Sport

Inspired by masterful Italian art

Leonardo Momento Zero Grande Frosted Pura Fountain Pen - Petrol Blue with Gold Trim penstorage The most recognized one beingPetrol Blue is a wonderfully dynamic color, shifting between blue and green depending on the surrounding light. The frosted translucent resin adds even more depth, while gold trim provides a warm, eye catching contrast. Like every pen in the Pura collection, the surface receives its satin texture through quartz crystal sandblasting, and the center band features Leonardos signature engraved geometric pattern.