Unbranded Italian button filler in blue and bronze celluloid with 14 ct Paramount nib. The pen is certainly and Italian product, probably made in the Turin Area. The celluloid is very precious and it is the same material Omas and The King used for some of their early models. This same celluloid can also bue found on Omega and Simplex pens.
Time of production: late 20's/early 1930's