Two bottoms dating

The bottle also does not have a ground down surface on the top of the finish.

This yields a "YES" answer to Question #2 and we know that this is a narrow mouth/bore machine-made bottle which very likely dates no earlier than 1905 and probably 1910. (Note: This section of the dating key is a series of independent questions where the answer to any given question is not dependent on the answer to another; a user may view the questions in any order.)In reading through "B", there are a couple other options available to help refine the dating a bit.

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).

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So at this point we know that this bottle was made in 1946.A user need go no further through the Dating page questions to refine the date further.-Embossed on the base is MISSION DRY CORP., some numbers & letters, and a symbol. It is apparent that the answer to Question #1 is "YES" since this bottle has raised embossing in the form of the "swirls" on the shoulder.-The Mission Beverages "label" appears to be painted or silk-screened onto the bottle. The embossing indicates that this has to be a molded bottle and can not be either free-blown, dip molded, or from a turn-mold.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".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.We now have refined the bottle age range a bit more - between about 19.However, for example sake we will continue through the questions.