Dating owens glass bottles
The Diamond OI Mark, as Reardons discussion shows, sometimes all three types of markings are combined.
Many of the partnervermittlung agentur mannheim liquor flasks made by Owens-Illinois have the Diamond and Oval with an I logo embossed sideways on the base of the container.
The Owens-Illinois workers used an old mold from either the Illinois Pacific Glass Corp.However, the bottom number was applied inconsistently.Until 1934, the bottles made by Owens- Illinois maintained the standard Owens- Illinois marking system (e.g.Porter, Bill 1996 Coke Bottle Checklist.Because Prohibition was not lifted until 1933, this meant that bottles marked with a zero were probably from 1940.While looking at the amber beer bases from the El Paso excavation, I noticed an interesting change in bottles marked with a zero (0).Lowex another brand name which was used for their borosilicate glass forumula employed especially for power line insulators.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 exceptionssee note below discussing a bottle made in 1966 with the old trademark).Leavitt added, At least some of the dot coding on the bases of modern bottles is for Q C quality control, to identify the cavity on a machine that produced a specific bottle.Owens appears on the base of some clear prescription bottles. .On many Owens-Illinois bottles, it is fairly easy with minor magnification to discern tooling marks where the old date code was peened flat and a new one imprinted into the mold to appear as an embossed date.Owens-Illinois registered the script version of the mark 390,467) on September 23, 1941, claiming first use on September 4, 1940.
As you will see below, the transition was not nearly as smooth as the official pronouncement would indicate.
The Illinois Glass.(a subsidiary of Owens-Illinois) from 1930.Occasionally, these periods are difficult to see because they are concealed in the stippling, but periods are generally larger than the stippling dots.The first type is the manufacturers mark.It is clear that Toulouse was confused about plant #5.Http Stoddard, Bob 2003 The Big Nickel Drink: The Pepsi-Cola Story and a Lot More.This idea appears to have been conceived in conjunction with machinemade bottles.Polish, portuguese (Portugal spanish (Spain spanish (South America portuguese (Brazil).
Some bottle molds already in use were not re-engraved until as late as 1957, 1958, 1959, even, as mentioned, in 1966. .
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