Modifiche

In fact, there are references to the production of celluloid pens up since 1905<ref>David Nishimura in [http://www.fountainpennetwork.com/forum/index.php?showtopic=136998&st=0&gopid=1360934&#entry1360934 this discussion] refers to a 1905 article that speaks of (black) celluloid pens.</ref> but in this case it is still black celluloid, and not the one made in multiple colors and patterns which will become the most significant material from the second half of the '20s.

In fact, there are references to the production of celluloid pens up since 1905<ref>David Nishimura in [http://www.fountainpennetwork.com/forum/index.php?showtopic=136998&st=0&gopid=1360934&#entry1360934 this discussion] refers to a 1905 article that speaks of (black) celluloid pens.</ref> but in this case it is still black celluloid, and not the one made in multiple colors and patterns which will become the most significant material from the second half of the '20s.

== Notes ==

== Notes ==

<references/>

<references/>

* [http://pickcollecting.presspublisher.us/issue/summer-2010/article/pick-degradation] On picks degradation

* [http://pickcollecting.presspublisher.us/issue/summer-2010/article/pick-degradation] On picks degradation

* [http://cool.conservation-us.org/jaic/articles/jaic30-02-003_3.html] Celluloid objects: their chemistry and preservation

* [http://cool.conservation-us.org/jaic/articles/jaic30-02-003_3.html] Celluloid objects: their chemistry and preservation

[[Category:Translated Pages]]

[[Category:Translated Pages]]

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