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This changed only after the mid '30s, when the role of [[Aurora]] sub-brand became officially recognized by the appearance of ''Olo'' pens in the parent company catalogs, as proposed as lower end pens, but with the usual characteristics of reliability and robustness.  

This changed only after the mid '30s, when the role of [[Aurora]] sub-brand became officially recognized by the appearance of ''Olo'' pens in the parent company catalogs, as proposed as lower end pens, but with the usual characteristics of reliability and robustness.  

There is no precise dating of the ''Olo'' models, although usually you can take as a reference the corresponding models of the [[Aurora]] production of which they were a kind of cheap version; they are easily recognizable by clips shapes and materials entirely similar to those of the respective [[Aurora]] models.

There is no precise dating of the [[Olo]] models, although usually you can take as a reference the corresponding models of the [[Aurora]] production of which they were a kind of cheap version; they are easily recognizable by clips shapes and materials entirely similar to those of the respective [[Aurora]] models.

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