Modifiche

In this period, placed in the first half of '20s, there was also a change of style, passing from the imitation of Germans model to the American ones. The change is shown by some as a consequence of birth, in [[1927]], the new Columbus Eugenio Verga, but there are<ref>on the [http://www.columbuspenne.it/COL/antiche/pagine-ita/origini.htm historic section] on the company site the [[Columbus 670]] is dated to 1924, and there is a commercial letter from [[1926]] were such models are shown.</ref> clear references to pens with this style produced before the separation of Verga brothers, and in [[:Categoria:Columbus-Catalogo-Safety-192x|this catalog]] before the division they appear together.

In this period, placed in the first half of '20s, there was also a change of style, passing from the imitation of Germans model to the American ones. The change is shown by some as a consequence of birth, in [[1927]], the new Columbus Eugenio Verga, but there are<ref>on the [http://www.columbuspenne.it/COL/antiche/pagine-ita/origini.htm historic section] on the company site the [[Columbus 670]] is dated to 1924, and there is a commercial letter from [[1926]] were such models are shown.</ref> clear references to pens with this style produced before the separation of Verga brothers, and in [[:Categoria:Columbus-Catalogo-Safety-192x|this catalog]] before the division they appear together.

Nella prima metà degli anni '20 venne introdotta la [[Columbus 670]] un nuovo modello di [[rientranti|rientrante]] molto simile alla [[Waterman 42]],<ref>nella [http://www.columbuspenne.it/Columbus/1918-1930.html sezione storica] del sito dell'azienda dedicata alle penne della produzione più antica una [[Columbus 670]] viene datata al [[1924]].</ref> prodotto in sole tre versioni, normale, sottile, e da signore. Queste vennero prodotte in ebanite nera, rossa o fiammata, e venne inoltre ampliata la gamma dei [[overlay|rivestimenti]] disponibili; alle semplici incisioni a macchina si aggiunsero decorazioni a bassorilievo o a galleria e questa lavorazione diventò uno dei punti di forza dell'azienda, tanto che essa commercializzava anche penne [[Waterman]] e [[Montblanc]] con rivestimenti proprio.<ref>come inequivocabilmente dimostrato da [[:Categoria:Columbus-Catalogo-Safety-192x|questo catalogo]].</ref> E' degna di nota la produzione di questa penna con una incisione della stella di Davide sul corpo della penna (riportata anche sulle confezioni) come frutto di un accordo fra la [[Columbus]] ed il ghetto di Milano. Lo stesso simbolo si trova comunque anche su altri modelli.

In the first half of '20s  the [[Columbus 670]] model, very similar to [[Waterman 42]], was introduced. It was produced in three size, normal, thin, and ladies,  and in black, red or [[mottled]] hard rubber. The range of available [[overlay]]s was also expanded, and to the simple machine engraving were added decorations or bas gallery and this kind of work became one of the strengths of the company, so that they sold also [[Waterman]] and [[Montblanc]] pens with their [[overlay]]s.<ref>as shown in [[:Categoria:Columbus-Catalogo-Safety-192x|this catalog]].</ref> There is a remarkable production of this pen with an engraving of the David star on the body of the pen (also listed on the packaging) as a result of an agreement between [[Columbus]] and the Milan ghetto. The same symbol appears in other models.

In [[1927]], when the [[safety]] hard rubber models were too old, the company faced a crisis and broke up. The two brothers separated, ''Alfredo Verga'' founded its own company, the ''[[Omega A.V.M.]]'' while ''Eugenio Verga'', owning of the [[Columbus]] trademark, continued alone creating a personal company with its own name.  

In [[1927]], when the [[safety]] hard rubber models were too old, the company faced a crisis and broke up. The two brothers separated, ''Alfredo Verga'' founded its own company, the ''[[Omega A.V.M.]]'' while ''Eugenio Verga'', owning of the [[Columbus]] trademark, continued alone creating a personal company with its own name.