392 byte aggiunti
, 12 anni fa
In the late 30's, following the trend of the pens capable to show their ink level, [[Montegrappa]] started to use the [[piston filler]] and produced a [[Montegrappa trasparente|new line]] of celluloid pens with a transparent section. Also in this period, the effects of the World War II began to be felt, and autarkic models, equipped with metal trim and chrome steel nibs, began to appear.