Vintage Clear Glass One Gallon Jug Wood Handle Illinois glass co.

Rare Vintage Clear Glass One Gallon Jug Wood And Wire Bale Handle Hallmark On Bottom Illinoi's glass co... Damage to one loop on handle (see photo) Iowa Country Primitive Decor.
As stated above, a date code usually appears to the right of the Owens-Illinois logo. On many bottles, a single-digit date code along with the “Diamond/Oval/I” mark may indicate the 1930s. From information compiled in Bill Lockhart’s article (link below) on Owens-Illinois’ date code markings, it appears that, on containers with this earliest trademark, if a single digit date code (such as a “1 or “4” placed to the right of the logo) is followed by a period, the chances are very good the bottle in question dates from the 1940s, especially the 1940-1947 period. However, there are some exceptions to this general rule, and single-digit date codes were also used in later decades along with the later “I inside an O” mark (but without a period placed to the right of the code).