As for the manufacturer of the bottle, that would be T.C. Wheaton Co., Millville, New Jersey (1901-1970) See https://sha.org/bottle/pdffiles/TCWheatonGlass.pdf for more info on this company.
Appears to be earlier 20th century - I am not seeing a mold seam going all the way to the top of the lip?? Can you clarify this?