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In [[1938]], following the trend introduced by the [[Vacumatic]] of ''visualated pens'' showing the ink level, [[Aurora]] introduced the [[Optima]] model, a [[plunger filler]] made of transparent celluloid, which remained in production until the early '40s. Another model of the same year was the [[Topolino]], a simple [[button filler]] entitled to the Disney character, featuring a Mickey Mouse engraving, and oriented to youth people and students, soon paired with [[Biancaneve]]. From the same period should be noted the [[Iridia]] model and the [[ML]] line introduced in [[1938]], produced, at least officially, for the armed forces officers.  

In [[1938]], following the trend introduced by the [[Vacumatic]] of ''visualated pens'' showing the ink level, [[Aurora]] introduced the [[Optima]] model, a [[plunger filler]] made of transparent celluloid, which remained in production until the early '40s. Another model of the same year was the [[Topolino]], a simple [[button filler]] entitled to the Disney character, featuring a Mickey Mouse engraving, and oriented to youth people and students, soon paired with [[Biancaneve]]. From the same period should be noted the [[Iridia]] model and the [[ML]] line introduced in [[1938]], produced, at least officially, for the armed forces officers.  

The Second World War was a crisis period for business: the curtailment of raw materials, and the difficulty on gold procurement, led to the creation of steel nibs.<ref>another incorrect story tells that gold was prohibited by law from 1937 because the autarkic program of the fascist regime, but no such law existed and gold nibs pen are reported to be on catalogs up 1941, along with ''[[Platiridio]]'' nibs and ordinary steel nibs (marked ''Durium'').</ref>  As it happened to other companies [[Aurora]] sought to replace the lack of material inventing precious names, and called its alloy steel ''[[Platiridio]]''. In [[1939]] the [[Selene]], a [[button filler]] model, was introduced; it was made in celluloid with white metal finishes and a ''[[Platiridio]]'' nib.

The Second World War was a crisis period for business: the curtailment of raw materials, and the difficulty on gold procurement, led to the creation of steel nibs.<ref>another incorrect story tells that gold was prohibited by law from 1937 because the autarkic program of the fascist regime, but no such law existed and gold nibs pen are reported to be on catalogs up 1941, along with ''[[Platiridio]]'' nibs and ordinary steel nibs (marked ''Durium'').</ref>  As it happened to other companies [[Aurora]] sought to replace the lack of material inventing precious names, and called its alloy steel ''[[Platiridio]]''. In 1938 the [[Selene]], a [[button filler]] model, was introduced; it was made in celluloid with white metal finishes and a ''[[Platiridio]]'' nib.

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