Dating glass containers incorporated bottles
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“O-I” trademark Base of Yacht Club Beverages ACL soda bottle, bearing 1966 date code along with older mark. w=1280&ssl=1 1280w" data-lazy-sizes="(max-width: 300px) 100vw, 300px" data-lazy-src="https://i0com/The “I inside an O” trademark The second mark used by Owens-Illinois Glass Company was phased in during the mid- 1950s with the removal of the diamond.Julian Toulouse (Bottle Makers and their Marks, 1971), states this mark was used beginning in the year 1954.However, more research over the years has shown there was actually a gradual changeover from the “old” to the “new” trademark on containers, which occurred over a period of four or five years beginning in 1954 (with a few known exceptions—see note below discussing a bottle made in 1966 which carries the “old” trademark on the base! Some bottle molds already in use were not re-engraved until as late as 1957, 1958, 1959, even, as mentioned, in 1966. “OWENS” appears on the base of some clear prescription bottles.Illustrated among the pics on this page is the base of a bottle made at the Columbus, Ohio facility (plant #18) with a date code of “7” which in this case probably stands for 1937.