The diffusion demontrator pen is based on the shape and style of the 1937 Onoto Magna and features the iconic two thin and one broad cap bands of their famous predecessor, together with the famous Onoto cypher cap button.

The diffusion demonstrator is a transparent pen, showing the plunger-filler mechanism within, with an inky pattern on the cap tassie & barrel and complemented with gold-plated sterling silver fittings.

The diffusion demonstrator pen is available in limited-edition of 100.

Materials: High density acrylic with hallmarked gold-plated sterling silver fittings

Nib: Onoto Size 7 in 18ct Gold or Gold plated stainless Steel

Ink feed: Plunger Filler