Translations:Stylomine/13/en

In 1933 was created a very special re-entrant nib mounted on a spring that was made by screwing the cap back by the pressure of an inner tip (see nº FR-737930). This system was used in the new 303B model, produced in three versions corresponding to three different sizes. The filling system was a refinement of the previous one of 303 and was also used for the 303C model, made in celluloid and without the re-entrant nib, for which, in addition to the three previous dimensions, was produced also a fourth size, large enough to call it Mastodonte.