The Onoto Magna Plunger-Filler pen is a modern version of Onoto’s original pen made to George Sweetser’s 1905 patent for a self-filling, leak-proof fountain pen.

The Onoto Magna Plunger-Filler pen is a modern version of Onoto’s original pen made to George Sweetser’s 1905 patent for a self-filling, leak-proof fountain pen. The plunger-filler mechanism was innovative inasmuch as, before Sweetser’s invention, pens had to be filled with eye-droppers, or the like.

Write Here are pleased to offer you the Onoto Magna Plunger Filler fountain pen for sale online or, if you’re in our area, from our shop in Shrewsbury, in the UK.

Note that these pens are limited editions.