Thanks madman. It has no mold markings of names. The top isn't regular screw top. It has collar with 1/4 inch band then 1 coil for screwing then neck that has rounded then another collar. Oops........daughter just found molded name of Duraglas at bottom sides.
Any idea of the age?
This is a large Brown bottle that measuresapprox. 14" tall and 7" across. It has Black Bakelite screw cap and Pontiled bottom. Just registered and trying to figure how to attach/send pictures.