Red Cross glass bottles

Hi everyone. Anyone have any clue what these were used for? Age?

 

Medical bottles, I would think. I remember Red Cross labels on various things in my grandparents' bathroom cabinet back in the 50s.

 

Gee, maybe some


(But they're very cool bottles I've never seen before!!!!)​

 

Super cool. I think they were used for aspirin. https://museumandarchives.redcross.org.uk/objects/15805

 

This search gives a link to a PDF file from a bottle collector site. Red Cross bottles were made by Marion Flint glass company. The info in the PDF file gives you the whole scoop.
https://duckduckgo.com/?q=Red+Cross+bottle+Marion+Flint+glass+company&t=brave&ia=web

 

From the PDF that LauraGarnet02 mentions:
“the name of ‘Red Cross’ was a trademark for a certain line of prescription bottles produced by the Marion Flint Glass Company.”
and
"Marion registered the symbol of a cross between the words Red and Cross as their trademark for glass bottles on February 4, 1908, claiming a use since November 1, 1894.”

I don't believe this Red Cross has anything to do with the Red Cross service that most of us are familiar with.