Hello,

I recently got a Swan Mabie Todd rolled-gold lever fill fountain pen. Before putting on a sac, I wanted to clean the inside of the barrel and the pressure bar. The two snap rings are also rusted. After close inspection, I found that I have never encountered this mechanism. Could you please help me in finding the correct way to disassemble and reassemble? I am attaching a figure of the mechanism, which I could gather from visual inspection. There could be mistakes in the drawing because it is difficult to see the inside of the barrel.

swan_mabie_todd_lever_fill_mechanism_600px.jpg

It appears to be very similar to the staple-secured pressure bar (http://www.richardspens.com/ref/repair/levers.htm) but instead of the staple ("tab stamped into the middle of the pressure bar"), there is a slit in the pressure bar through which the hook is inserted.

Best regards,
banskt