Brown Glass Bottle

This brown glass bottle is about 15 cm tall and has a fairly wide neck that is ground down on the inside for a stopper (which was, sadly, missing when I got this bottle. *sigh*). There are no mold seams and no markings, but some strange striations along the glass (I don't think the photos show them) making me suspect this one was made in a turn-mold, around the turn of the century.
(Also, there is a small tag on this one that's vaguely visible in the photo's; I hadn't removed it yet but it's definitely a modern addition of a previous owner.)