Filling System
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Fountain pen converter sizes and lookup chart
The top graphic is a link to one page that lists converters by size This one includes dimensions and capacities. The next is a guide by pen brand.
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J.S. Staedtler MARS no. 4290
This is a J.S. Staedtler MARS no. 4290 chased piston filler that needed a new cork gasket. I made a new one using the same procedure as I used on this pen....
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Montblanc 256
This piston filler from the 1950s is the largest in the 25x series. It was designed by Albrecht von Goertz, a German-American who primarily designed cars for manufacturers such as BMW...
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Haro II
The Haro brand was named after the first two letters in the name of its founder, Hans Roggenbuck. The company was started in 1926 in Pomerania where they produced fountain...
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Montblanc 232 desk pen
This pen is very similar to the Montblanc 34 pictured here, however, the piston knob is extended, and the logo is placed on the side instead of the end. Oddly,...
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Parker Arrow
Parker has made three different models of fountain pen named the “Arrow”; this is the last of the three, from the early 1980s. This is the variant of the Arrow...