What is 1 2 3 4 base in dating
If one looks closely at the thick glass in the base of the bottle, one can see that the glass is not quite perfectly colorless, but instead has a slight "straw" or washed out amber tint to the glass (picture of base below).
This is a result of using arsenic and/or selenium as the glass decolorizer.
Once the likely bottle age or date range is determined, some examples of other places to look for more information is provided.: -It is about 9" (23 cm) in height and 2 3/8th inches (6 cm) in diameter.
-It is made of thick, heavy glass for its size, weighing almost 1 lb.
have the distinctive "Diamond O-I" marking just under the "7".
(Note: The "I" can appear as a dot in the middle of this mark like with this bottle, though on most it is a more or less distinctive "I".)Reading down through the narrative in Question #11, we find out that the number just to the right of the Diamond-O-I mark is the last two digits of the year the bottle was manufactured, which on this bottle is a "46".
The bottles used for illustration are a small but diverse assortment designed to give users guidance on how to work a bottle through the dating information to answer the Homepage's primary question #1 - What is the age of the bottle?One of the top returns on the search list would be the "e-Book" entitled Bottles on the Border: The History and Bottles of the Soft Drink Industry in El Paso, Texas, 1881-2000.This e-Book is now posted on this website and contains an extensive amount of information on soda bottles in general as well as specifically to those used in West Texas.The picture to the lower right is a close-up of finish of the Mission bottle.
It shows that the side mold seam does go up to and through the finish/lip all the way to the top of the bottle.A bit more information is available on this site for this type of bottle by reviewing the the Bottle Typing/Diagnostic Shapes page and by looking through the Reference Sources/Bibliography page for potentially useful references.However, if more information were desired a quick search on the internet using the words "Mission Dry Corporation" (the embossing on the base) would lead a user to an assortment of information indicating that the company was bottling as early as 1933, that its primary product was soda water, that these style Mission bottles date into the mid-1950s, and miscellaneous information about specific company products like cans, labels, etc.Looking at the two options under Question #8, it is clear (no pun intended) that this bottle matches refinement #2 which makes it highly probable that this bottle dates after 1920 and but probably no later than the 1960s.