Onoto
This Onoto Demonstrator, made before the days of transparent plastics, has cut-aways in the barrel and section to illustrate the filling mechanism. Since it is not possible to fill it, has a dummy steel nib.
DEM-05 £300
Sheaffer Ball Pen
A Sheaffer Ball Pen Demonstrator that perfectly displays the clip-actuated mechanism.
DEM-07 £100
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