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, 12 anni fa
With the progress of World War II came also a shortage of raw materials, particularly for gold nib, and like most of the European companies [[OMAS]] had to resort to some steel alloy. The one used by [[OMAS]] was called ''[[Permanio]]'', and was advertised as having a better durability even when compared to gold. But this alloy proved to be one of the most susceptible to corrosion, and today ''[[Permanio]]'' nibs are very rare and have a much higher value of their analogues in gold.