Modifiche

In the middle of '40s ''Columbus'' introduces the [[Columbus 13x|134]] model, a big [[lever filler]] pen that was a clear imitation of the [[Eversharp]] [[Skyline]]. The same model was also produced in the [[Columbus 13x|132]] medium size version and in the [[Columbus 13x|130]] small version, for ladies. Again in the '40s a [[piston filler]] model, the [[Columbus 40|40]], was also produced and the [[Columbus 55|55]] had a restyling, becoming a whole line of pens.

In the middle of '40s ''Columbus'' introduces the [[Columbus 13x|134]] model, a big [[lever filler]] pen that was a clear imitation of the [[Eversharp]] [[Skyline]]. The same model was also produced in the [[Columbus 13x|132]] medium size version and in the [[Columbus 13x|130]] small version, for ladies. Again in the '40s a [[piston filler]] model, the [[Columbus 40|40]], was also produced and the [[Columbus 55|55]] had a restyling, becoming a whole line of pens.

In the '50s, following the market trends set by [[Parker]] with the success of the [[51]], ''Columbus'' introduced the [[Columbus 70|70]], an [[hooded nib]] model. In this case however the pen was not just an imitation: it was made in celluloid and used a [[piston filler]], it also had a screw cap, and the nib was only partially covered to allow the us of a flexible nib. Like other Italian imitations of the [[51]], such as the [[Aurora 88]] or the [[Omas 361]] the pen is probably more interesting than the original.  

In the '50s, following the market trends set by [[Parker]] with the success of the [[51]], [[Columbus]] introduced the [[Columbus 70|70]], an [[hooded nib]] model. In this case however the pen was not just an imitation: it was made in celluloid and used a [[piston filler]], it also had a screw cap, and the nib was only partially covered to allow the us of a flexible nib. Like other Italian imitations of the [[51]], such as the [[Aurora 88]] or the [[Omas 361]] the pen is probably more interesting than the original.

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]] [[Columbus Anni '50|models]] and other cheap plastic pens for the student market.

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]] [[Columbus Anni '50|models]] and other cheap plastic pens for the student market.