News — Swan leverless pen
Swan leverless filling system.
Posted by collectablepens . on
I recently restored two swan leverless pens, one an early Gold filled pen and the other a 1930s 0160. The sac replacement is really straightforward, fully clean out old sac and fit new one with a good dusting of chalk. The action of the system is usually described as 'twisting the sac' but I don't think that is actually what happens. When the button is turned the bar moves in such a way that the edge of the bar presses along the length of the centre of the sac pushing air out. When the button is tightened the bar returns to...