Return of the Plunger Filler

For years, the 1937 Onoto Magna has been the prized possession of many pen collectors. Renowned for its style and balance and of course, for its plunger-filling system, the Onoto Magna had no equals – until now! Here, for the first time since the 1950s, is a Magna Plunger-filler that has all the style and iconic design elements of its predecessor.
Innovative and unique

Issued in 2 distinctive versions – the Standard version in pure black acrylic with 23 carat gold-plated fittings and the Demonstrator with clear acrylic barrel and sterling silver fittings - each one hand-made in small limited editions, the Onoto Magna Plunger-filler is a pen with a superb pedigree.

The plunger-filling system was eventually withdrawn in the 1950s partly because of the cost of manufacturing such an intricate mechanism and partly because of the fashion for more streamlined pens. However, it remained a firm favourite with Onoto enthusiasts and collectors around the world, and now, following many requests, the recreation of an Onoto Magna with a true plunger-filling mechanism has become a reality.
Virtually maintenance-free

The Onoto Magna Plunger-filler has an impeccable lineage and has been developed using original Onoto drawings: the same classic design; the same chevron clip; the same plunger-filler vacuum system. However, key components are now made from better materials than those which existed 50 years ago. For example, the plunger rod is made of carbon fibre; the cup valves are a special silicone rubber and there's an ingenious 3 washer seal that we believe gives a much longer life than the original cork seals. This makes the brand new Onoto Magna virtually maintenance free.

Huge ink capacity
What’s more, the ink capacity is 3 mls, more than 4 times the capacity of a standard K5 converter or cartridge, so you have much longer writing time than most modern fountain pens.

Cut off valve prevents leaking
And, just like the original plunger-filler, The Magna Plunger-filler also features a cut-off valve which seals the ink reservoir when the pen isn't in use. Simply turn the valve by half a turn and it's ready to write!

Limited availability
The Onoto Magna Plunger-filler is being issued in a worldwide limited edition of just 100 pens, 75 in black acrylic and just 25 in the Demonstrator version. As the first fully-functioning Onoto Magna plunger-filler for over 50 years, early indications show that demand is likely to be substantial.

Certificate of Authenticity
Each Onoto Magna Plunger-filler comes in a superb burr wood presentation box with a signed and numbered Certificate of Authenticity confirming its limited edition status. The limited edition number is also engraved onto the barrel button fitted on the end of the plunger knob.