Help with bottle - WW1 or earlier?

[Ohio Rob]

The bottle is 8 sided and reads "ESERCITO ITALIANO". This stands for Italian Army. The seem stops at the top of the shoulder and the bottle has a thin tooled lip. There are a few bubbles and some white particles embedded in the glass. The bottle is 6" x 2". Anyone have any idea what it was for? Age? Ever seen one before? I put it in this after 1900 forum cause I thought it might be WW1.

 

[Ohio Rob]

Smooth base.

 

[AntiqueMeds]

I would guess its a medical bottle from WWI possibly slightly earlier but not much