Translations:Ercolessi/4/en

The first branded pens Ercolessi, built in the early '20s, were hard rubber safety pens, in the Waterman 42 style, almost certainly produced by Columbus. To these were added later lever filler models. To these followed Duofold style pensin in colored celluloid, presumably produced, as most of the Ercolessi branded pens of the '30s, by Omas.