5 GALLON CARBOY, mint condition, no chips or cracks...
I within a diamond (shown)...........Illinois Glass Company, Alton, IL (1873-1929). This mark was used from around 1915 to 1929. ABM (Automatic bottle machine) production was begun at Illinois Glass in 1910, and although I had presumed that the "I in a diamond" trademark was first used around that time, the U.S.Patent & Trademark Office data indicates Illinois Glass claimed use of this trademark was not begun until 1915. As far as I know, this mark is seen only on machine-made bottles which exhibit the typical Owens machine suction scars on the base. On very small bottles, the "I" may look like a dot inside the diamond, or be virtually illegible. Other plants that became part of Illinois Glass Co. during its operation include the Thompson Bottle Company of Gas City, IN (acquired 1913); Chicago Heights Glass Company, Chicago Heights, IL (1913) and Cumberland Glass Manufacturing Company, Bridgeton, NJ (1920).
Illinois-Pacific G