The pens in this series were produced in three different sizes. There are also variants that have different clip version, the first was the classic arrow clip of [[Tabo Mentis]], the only maintained in the subsequent period. To this one was added a brooch shaped plate clip, used in older versions, and a curved triangular terminated clip, with an arrow relief outline. | The pens in this series were produced in three different sizes. There are also variants that have different clip version, the first was the classic arrow clip of [[Tabo Mentis]], the only maintained in the subsequent period. To this one was added a brooch shaped plate clip, used in older versions, and a curved triangular terminated clip, with an arrow relief outline. |