Translations:Tabo Trasparente/10/en

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.