If it is a morphine ampule,then it wouldn't be any older than the Civil War era.I believe the hypodermic needle was introduced during the Civil War.It would be considered rare I would think, as pain meds and anesthetics were hard to come by during the war.Opium on the other hand was much more abundant.The one end looks like a typical ampule,the little cork on the other end has me wondering.Interesting find,still undecided.