The original stopper on this suggests it was likely made as a cologne bottle, rather than as a flask, but I can't find another quite like it, with this pretty open weave pattern to the basketry and fancy weaving/knotting around the neck, which I especially love--like a ruffly collar! A nice example, and completely usable still. Early 20th century I would think, with a nice fat rolled lip with lots of bubbles on the blown glass bottle.
5 1/8" x 3 1/8", very good condition.