Modifiche

The nibs are classified classically<ref>by classically it is meant referring to the initial period of the spread of the fountain pen, this type of classification has now virtually disappeared.</ref> based on a series of numbers expressing their size, although more or less all manufacturers have adopted similar figures (with values ranging from 00 to 12) the numbers do not have a reference to a precise measure, but are simply a relative indication (a nib #4 is usually larger than a #2 of the same manufacturer), and are different between a manufacturer and another. Very often, see for example the [[Numerazione Waterman|Waterman numbers]] and the [[Numerazione Montblanc|Montblanc numbers]], they were also used to identify the different models of a production line.

The nibs are classified classically<ref>by classically it is meant referring to the initial period of the spread of the fountain pen, this type of classification has now virtually disappeared.</ref> based on a series of numbers expressing their size, although more or less all manufacturers have adopted similar figures (with values ranging from 00 to 12) the numbers do not have a reference to a precise measure, but are simply a relative indication (a nib #4 is usually larger than a #2 of the same manufacturer), and are different between a manufacturer and another. Very often, see for example the [[Numerazione Waterman|Waterman numbers]] and the [[Numerazione Montblanc|Montblanc numbers]], they were also used to identify the different models of a production line.

{{:Tabella misure pennini}}

{{:Nib sizes table}}

Another possible classification is that made on the basis of the size and possibly the shape of the tip of the nib itself (fine, medium, wide, etc..). Even in this case, there is no universal standardization adopted by all, even if many manufacturers have ended up using abbreviations that are quite uniform among them, such as those shown in the table on the right, most of which are still in use today.  

Another possible classification is that made on the basis of the size and possibly the shape of the tip of the nib itself (fine, medium, wide, etc..). Even in this case, there is no universal standardization adopted by all, even if many manufacturers have ended up using abbreviations that are quite uniform among them, such as those shown in the table on the right, most of which are still in use today.