Helios pens are the result of a collaboration between the German firm Kaweco and the Italian company named Helios-Silga based in Milan.
Silga is an acronym meaning: Società Italiana Lavorazione Galalite e Affini ( Italian Company for the production of galalith and similar goods)
The Milan-based company was run by Mr. Giarola who was the official Kaweco representative for the Italian market. Helios was a Kaweco subbrand and this explains the connection with the Italian Helios company.
The trademark Helios (and Elios, without H) was registered in Italy in the early 1930's.
Italian Helios pens are however different from German models and retain a clear Italian identity. Many of them are marked Helios-Silga to make clear their definitive Italian origin.
This Helios set from the late 1940's in brown striated celluloid is in near mint condition.
The pen is a button filler with a nice 14 ct Helios nib, which is smooth and flexible.