Help Identifying This Pen; Vintage 3" Mini Fountain Pen with 14K Warranted Flex Nib

[jaelkthompson]

Hi FPN Community, 

 

I'm hoping that someone can help me identify this fountain pen. It is tiny, about 3 inches unposted, 3.75 inches posted, about the diameter of a Kaweco Liliput, and has a 14k warranted nib. It is an eyedropper, and there are no brand or other markings on the body. It feels like a plastic/resin material. The section is threaded, but the cap is not.

 

My first guess is that maybe it is a type of compact fountain pen that a soldier may have carried, but I have no idea who made this pen and how old it is. Any thoughts?

 

 

Edited May 13 by jaelkthompson
Grammar corrections and additional details