549 byte aggiunti
, 12 anni fa
The [[OMAS]] initial production is characterized by some [[button filler]] [[Flat top]] models, that were a clear imitations of the [[Duofold]]. But some of these sported original technical solutions, like the second version of the ''[[Modelli iniziali OMAS|Penna del dottore]]'' in which the thermometer was again hosted by the body of the pen, or the ''[[Modelli iniziali OMAS|penna del calligrafo]]'', directed to the use by calligraphers, which was equipped with a special section that can be unscrewed and replaced, allowing an easy nib change.