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The pen that more than any other is considered the prototype of plastic resins fountain pens, is the famous [[Parker 51]], created in [[1939]], but marketed extensively only since [[1941]]. The body of the pen, so as the section and the shell that protects the [[hooded nib]] was realized in ''"[[Lucite]]"''.  

The pen that more than any other is considered the prototype of plastic resins fountain pens, is the famous [[Parker 51]], created in 1939, but marketed extensively only since 1941. The body of the pen, so as the section and the shell that protects the [[hooded nib]] was realized in ''"[[Lucite]]"''.

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