Most collectors associate repros of this bottle with the Clevenger Brothers of New Jersey.
This one lacks the "DYOTTVILLE GLASS WORKS PHILADA" embossing on the Taylor side so I believe it is a different manufacturer. Tom Haunton's Clevenger Glass book reports that they were made only with a straight lip without tooling.
It is most likely less than about 40 years old.
See my Washington Taylor flask page for more info.
