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In addition to the top line of the various series marked ''Columbus Extra'' the company also produced lower price pens simply marked as ''Columbus'', also identified by a numerical code. In the production of the second half of the '30s stand out among these the [[Columbus 3x|30]] and [[Columbus 55]] lines. Around 1940, even if there is who gives the origins to the second half of the '30s, the [[Columbus 25]] was introduced to a compact pen with a  stylized spear-shaped clip using a [[button filler]] system. Although not marked as top line, the pen was provided with very elegant band decorations on the cap, similar to those found on the top models of the ''Columbus Extra'' series.

In addition to the top line of the various series marked ''Columbus Extra'' the company also produced lower price pens simply marked as ''Columbus'', also identified by a numerical code. In the production of the second half of the '30s stand out among these the [[Columbus 3x|30]] and [[Columbus 55]] lines. Around [[1940]], even if there is who gives the origins to the second half of the '30s, the [[Columbus 25]] was introduced to a compact pen with a  stylized spear-shaped clip using a [[button filler]] system. Although not marked as top line, the pen was provided with very elegant band decorations on the cap, similar to those found on the top models of the ''Columbus Extra'' series.