Dating old 7up bottles
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.
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.
Otherwise there are only the slight scratches common with a bottle of this age.
Both the front and back has a small white 7up sheild on the neck. It was their Duraglas product which was used for beer and other bottles that were refilled many times.
It stands 8" tall, is 2-1/4" across the bottom and it held 7 fluid ounces.
(no lady or bubble images) Here are it's particulars:8" Tall Crown Top Smooth Base with embossing Embossed Text on Base reads: DR. Under the 7UP, there is a faint number 2 or 3 embossed as well On the face of the bottle there is a painted white label: 7up ALKALINE REACTION THE GAS PURIFIES, with a white baseline.
(around outer edges)In center of base there is an embossed "7UP" (the "up" is underlined)Above the 7UP, it is very difficult to see, but it looks like a circle within a star, or between parentheses???