Translations:Columbus/27/en

The last series produced in celluloid, the Columbus 90, was introduced approximately in 1951, and was made both with a piston filler or with a special button filler with the back knob not removable, very similar to the Montblanc push-knob. The production of the '50s saw the abandonment of celluloid for the use of cheaper molded plastic, and the production of hooded nib models and other cheap plastic pens for the student market.