Modifiche

Pens in this series were celluloid made, with gold filled metal trim and clasp, and a 14-carat gold nib, or finished in white metal and whit a steel iridium nib (for a possible autarkic version).  

Pens in this series were celluloid made, with gold filled metal trim and clasp, and a 14-carat gold nib, or finished in white metal and whit a steel iridium nib (for a possible autarkic version).  

==Filling system==

===Filling system===

These models were equipped by an original depression filling system based on the same concepts as the [[Vacumatic]] one. In this case, however, was not necessary to remove the bottom of the pen button to access the pumping button, but this was done through the end plate itself, which is coupled to a spindle screwed to the bottom of the pen. Unscrewing the bottom extended the spindle itself and then the bottom could be used to perform the pumping operation.

These models were equipped by an original depression filling system based on the same concepts as the [[Vacumatic]] one. In this case, however, was not necessary to remove the bottom of the pen button to access the pumping button, but this was done through the end plate itself, which is coupled to a spindle screwed to the bottom of the pen. Unscrewing the bottom extended the spindle itself and then the bottom could be used to perform the pumping operation.