UNUSUAL AUSTRIAN MADE MANOS FOUNTAIN PEN. THIS PEN IS A PISTON FILLED PEN WITH A BOTTOM KNOB FOR THE PISTON. THIS PENS FILLING SYSTEM IS NOT REPAIRED BUT THE PISTON DOES MOVE FREELY. PEN HAS UNIQUE TUBE UNDERFEED. CHASED BLACK HARD RUBBER COMPOSITION. COLOR IS 98% AND CHASEING IS BOLD. A REALLY NICE EXAMPLE OF THIS PEN WHICH IS USUALLY FOUND WARPED WITH A FIDLLING SYSTEM THAT IS LOCKED UP. FINE POINT MERCER #3 NIB.