who is freida pinto dating now - Dating antique glass

The diamond/oval/I mark is by far the most common identification mark on glass containers found in trash dump sites in the United States from the 1930s, 1940s, and 1950s.

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There was 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 with the “old” trademark).

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.

Hemingray was a prolific maker of electrical insulators (of many types and sizes) for power lines, telegraph, telephone and other uses.

Within a year or two, most glass insulators produced at Muncie were carrying date codes.

Many millions of insulators were made at Muncie, up to 1967.

(See my webpage on Hemingray Glass Company for more information on Hemingray insulators.) Known as Owens-Illinois, Inc.

since 1965, (and officially known as just “O-I” since 2005), this corporation is currently (2013) one of the largest manufacturers of glass containers in the world, if not THE largest. currently operates 19 glass manufacturing facilities within North America.

They are located in: Atlanta, Georgia; Auburn, New York; Brockway (Brockport), Pennsylvania [2 plants]; Ringgold, Virginia; Lapel, Indiana; Los Angeles, California; Muskogee, Oklahoma; Oakland, California; Portland, Oregon; Streator, Illinois; Toano, Virginia; Tracy, California; Waco, Texas; Zanesville, Ohio; Lexington, North Carolina; Windsor, Colorado; and in Canada: Montreal, Quebec and Brampton, Ontario.

On many bottles, a single-digit date code along with the diamond/oval/I mark may indicate the 1930s.

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