Modifiche

Next models were [[lever filler]] or [[button filler]], produced in the red, green, blue and black colors. These pens are very similar to the [[Duplex]], in particular the [[lever filler]] one in which the lever is identical to the [[Duplex]] one  except for the absence of inscriptions. The models were produced in two sizes, large and medium, known as ''Senior'' and ''Junior''  for lever versions and as ''Businnes'' and ''Standard'' for [[button filler]] models.  

Next models were [[lever filler]] or [[button filler]], produced in the red, green, blue and black colors. These pens are very similar to the [[Duplex]], in particular the [[lever filler]] one in which the lever is identical to the [[Duplex]] one  except for the absence of inscriptions. The models were produced in two sizes, large and medium, known as ''Senior'' and ''Junior''  for lever versions and as ''Businnes'' and ''Standard'' for [[button filler]] models.  

In the first half of the '30s (at least since [[1933]], since they appear in [[:File:1933-07-Asco-Brochure-Pen-Front.jpg|this brochure]]) was introduced a new line of [[button filler]] pens, with [[streamlined]] lines and conical shape back and head, produced both in marbled and solid color celluloid. These models were ever produced in two sizes, large and medium referred respectively as ''Modern 23'' and ''Electa 21''. These were joined, in the second half of the 30s, by lower quality models produced from celluloid pipes in a variety of marbled colors.

In the first half of the '30s was introduced a new line of [[button filler]] pens, with [[streamlined]] lines and conical shape back and head, produced both in marbled and solid color celluloid. These models were ever produced in two sizes, large and medium referred respectively as ''Modern 23'' and ''Electa 21''. These were joined, in the second half of the 30s, by lower quality models produced from celluloid pipes in a variety of marbled colors.

The [[ASCO]] production was discontinued in the mid 30s. Although it was aimed at the marked lower end, the pens build quality and materials were excellent, so that some people say that the [[ASCO]], rather than a sub-brand, should be considered as a independent line production.

The [[ASCO]] production was discontinued in the mid 30s. Although it was aimed at the marked lower end, the pens build quality and materials were excellent, so that some people say that the [[ASCO]], rather than a sub-brand, should be considered as a independent line production.