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''Haro'' was founded in [[1926]] by ''Hans Roggenbuck'' (and derives its name from the initial letters of his name) in the district of Pomerania in Frömsdorf. Later the production was transferred to Frankenstein. The production was centered in the economic pens featuring mostly glass nib. It is not clear if glass nibs were first introduced by this company, or by the [[Spors]] created in the United States by Roggenbuck cousin, or has other origins, but it is certainly the distinguishing feature of this company production.

''Haro'' was founded in [[1926]] by ''Hans Roggenbuck'' (and derives its name from the initial letters of his name) in the district of Pomerania in Frömsdorf. Later the production was transferred to Frankenstein. The production was centered in the economic pens featuring mostly glass nib. It is not clear if glass nibs were first introduced by this company, or by the [[Spors]] created in the United States by Roggenbuck cousin, or has other origins, but it is certainly the distinguishing feature of this company production.

The ''Haro'' production had a moderate success due to the glass nib, especially for the characteristic to enable writing on multiple layers of carbon paper, widely publicized by the company. The nib was also corrosion resistant for inks and had very little costs, making the pen cheap. The main drawback still remained, beyond the mechanical fragility, that of a much more rapid consumption of the tip, in addition of course to the writing rigidity.

The [[Haro]] production had a moderate success due to the glass nib, especially for the characteristic to enable writing on multiple layers of carbon paper, widely publicized by the company. The nib was also corrosion resistant for inks and had very little costs, making the pen cheap. The main drawback still remained, beyond the mechanical fragility, that of a much more rapid consumption of the tip, in addition of course to the writing rigidity.

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