Can anyone tell me what my color-less “polka-dot” bottle was used for?
The long neck is smooth, but the body of the bottle has a raised dot pattern. It is clearly machine-made with side mold seams and an externally threaded screw cap. It has a knurled base.




The markings are an “I” within an “O”, for Owens-Illinois Glass Co., 1954 or later. The factory number is a 4. The date number is a 1. The number below the I-O is 6.
I found this bottle probably in the late 1970’s in the woods of Maine.
Can anyone tell me what it might have held back in the day? Soda? Vinegar?
Thanks
Jane