Modifiche

These followed then other models, referred to as ''[[Ercolessi 5x|Series 50]]'', [[button filler]] derived from the [[Minerva Ellittica]] and produced with the same measures, adopting the same numbering copying the [[Numerazione Waterman|pattern]] used by [[Waterman]]: the 52½ V (short and thin, like a lady, ring), the 52½ (mean and thin), the 52 (medium) and 55 (large). The pens had however, contrasting the original, is decorated with three rings and different colors of celluloid.  

These followed then other models, referred to as ''[[Ercolessi 5x|Series 50]]'', [[button filler]] derived from the [[Minerva Ellittica]] and produced with the same measures, adopting the same numbering copying the [[Numerazione Waterman|pattern]] used by [[Waterman]]: the 52½ V (short and thin, like a lady, ring), the 52½ (mean and thin), the 52 (medium) and 55 (large). The pens had however, contrasting the original, is decorated with three rings and different colors of celluloid.  

This line was joined by a more refined line, derived from the [[lever filler]] [[Minerva Ellittica]], also produced this with unusual colors for the original version. As further evidence of a production left largely to [[Omas]] there were also some ''Ercolessi'' pens derived from the [[Minerva Classica]], both in the [[lever filler]] and [[piston filler]] versions, also distinct from the different celluloid colors and the presence of three rings on the cap.

This line was joined by a more refined line, derived from the [[lever filler]] [[Minerva Ellittica]], also produced this with unusual colors for the original version. As further evidence of a production left largely to [[Omas]] there were also some [[Ercolessi]] pens derived from the [[Minerva Classica]], both in the [[lever filler]] and [[piston filler]] versions, also distinct from the different celluloid colors and the presence of three rings on the cap.

Celluloid pens were joined also by [[safety]] versions decorated with elaborate metal [[overlay]]s, again named after the [[Waterman]] [[Numerazione Waterman|pattern]] with the numbers 42 , 42½ and 42½ V, that were probably made by [[Columbus]]. Alsa the model called ''[[Velox]]'' was [[Columbus]] production, similar to the round [[Columbus Extra]] models, with wheel clip and two rings of different thickness on the cap.  

Celluloid pens were joined also by [[safety]] versions decorated with elaborate metal [[overlay]]s, again named after the [[Waterman]] [[Numerazione Waterman|pattern]] with the numbers 42 , 42½ and 42½ V, that were probably made by [[Columbus]]. Alsa the model called ''[[Velox]]'' was [[Columbus]] production, similar to the round [[Columbus Extra]] models, with wheel clip and two rings of different thickness on the cap.