UNBRANDED Italian gray facetted celluloid - Great writer

Unbranded Italian button filler in gray facetted celluloid with Waterman nib. The celluloid of this pen is very beautiful with a translucent lined pattern.
The pen is probably a Corona but it is not marked on the barrel. It is being sold as a good writer and it is a very pleasant pen to use.
Period of production: late 1930's/ early 1940s
The nib is a 14 ct gold Waterman, grade M, smooth and flexible.