bamascavenger
Posts: 295
Joined: 9/1/2007
From: Al.
Status: offline
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Morbious, here is the answer i got from a man i met on line.....
Hi, Terry:
My name is Kenneth Rudd, and I live in Pasco, Washington. I appreciate your taking the time to write to me. I am familiar with Dr. Lockhart’s work. I have .pdf files of his articles about 7Up labels and Owens-Illinois bottle dating. It’s a wealth of information that has served me well, except when it comes to the Texas amber bottles.
Lithium citrate wasn’t removed from 7Up (and Bubble-Up, Upper 10, Canada Dry Hi-Spot, and many other lemon-lime sodas) until 1950, as mandated by the government. I have a green 7-oz. 7Up with “lithia” on the label dated as late as 1949, and two from Yakima, Washington, dated 1946. I have two 1951 bottles, from Yakima and Walla Walla, Wash., with non-lithia labels.
As for the 8-bubble labels on the ambers: they are an anomaly I cannot explain, but the Owens-Illinois markings clearly indicate 1946. The code does not lie. Here is a link to Dr. Lockhart’s article on O-I bottle dating:
http://www.sha.org/bottle/pdffiles/OwensIll_Blockhart.pdf
This passage explains why these bottles are from 1946:
At some point in 1940, someone in the Owens Illinois Glass Co. seems to have realized that a zero could indicate either 1930 or 1940, so a new code needed to be developed. The answer was to add a period indicating a manufacture of 1940 or later. The stippling idea (presumably to help keep bottles from sliding on wet surfaces) appears to have evolved about the same time, and all this was conceived in conjunction with the Duraglas process. Owens-Illinois continued the single-digit numeral/period system until 1946, although the company began integrating a two-digit system as early as 1943. That means 1940s bottles may have either a 0 or 0. marking, but 1941 and 1942 are almost always marked 1. or 2. Occasionally, these periods are difficult to see because they are concealed in the stippling, but periods are generally larger than the stippling dots. Bottles made in 1943-1946 may contain either single-digit numerals followed by periods or double-digit markings, such as a 4. or 44 for 1944.
In several cases, the initial 4 has been added as an afterthought, frequently slightly out of alignment with the other digits associated with the logo. Occasionally, a mold engraver forgot to change the code. The initial bottle used
by the Illinois Brewing Co. of Socorro, New Mexico, for example, was made in 1946 but has a single 6 to the left of the
Owens-Illinois manufacturer’s mark but with no period after the number. However, I have found few exceptions to the period rule. By 1947, the change to double-digit date codes appears to have been completely adopted by all the plants.
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I learned about the period dating system from reading Dr. Lockhart. These bottles have to be from 1946. There is no other explanation for the markings on the bases. “6.” clearly stands for 1946. On one of my bottles, a “4” was added to the mold in the manner described by Dr. Lockhart. I have a high-resolution photograph that clearly shows this, but you are familiar with the eBay photos, so I won’t send it unless you’d really like to see it.
If anyone has an alternate explanation, I’m all ears. Until then, I’m convinced these bottles are from 1946.
Ken
_____________________________
Army Rangers Lead The Way!
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1946? 7up amber squat sells for over 300! - 
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