The Diffusion Demonstrator
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 a limited-edition of 100.
The Diffusion Demonstrator 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 clip features the Onoto logo and the distinctive ‘chevron’ pattern that has been used on many Onoto cap clips since 1905.
High-density acrylic with hallmarked gold-plated sterling silver fittings
Onoto size 7 in gold-plated stainless steel
Hallmarked gold-plated sterling bands
Button – gold-plated sterling silver
Clip – gold-plated sterling silver with Onoto cipher
Gold-plated sterling silver button
Capped (closed): 144mm
Uncapped including nib: 127mm
Posted including nib: 166mm
Barrel diameter: 11 – 13.2mm
Cap diameter: 14 – 15.8mm
Cap length: 67mm
Gold-plated SS or 18ct carat gold
Fine, medium or broad nib as standard
Customised stub, italic or other styles available to order
Conversion kit available to order separately
All of our deliveries will be tracked and insured. The delivery charges are based on destinations:
UK under £50 – standard: £4.99 + vat; upgrade to Courier delivery: £9.99+vat
UK over £50 – standard: Free; upgrade to Courier delivery: £9.99+vat
EU - standard: 14.99 no vat; upgrade to Courier delivery: £24.99 no vat
Rest of World – standard: £19.99 no vat; upgrade to Courier delivery: £29.99 no vat
EU countries include Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.
Items with standard specifications, i.e. no options are chosen, will normally be dispatched within 2-3 working days. Delivery lead time can be delayed in some circumstances. For example if you have requested personalisation of your order such as engraving or change of fittings.
If for any reason we are unable to meet our delivery commitments, we will contact you with a revised estimated delivery date or offer you the option to cancel or select other goods.