Reuse, of course, does not change the manufacturing date of the bottle itself, but care must be exercised when using the known date of one or a few bottles to date other items found from the same context. When a likely or known older item is found in a known newer site it is referred to as deposition lag.
most bottles with embossed lettering date from the late 19th century and later. Lettering on the body will give clues to the contents and lettering on the base will give clues to the manufacturer. Both require more specific research to refine the bottles date beyond observation of technology.
Look for the raised letters on the bottle that say, federal law prohibits the resale or reuse of this bottle. This will date your bottle between 19, when federal law required all bottle manufacturers to have this wording in their molds.
, then your bottle dates between 1933 (end of prohibition) and 1970. If your bottle is american and has a patent number, check out this table of u.
Year dates on wine bottles the vintage of a wine is the date the grapes for that wine were picked.
this is the harvest date, but how do we know the date it was bottled and ready for sale? Sean, scotland. Dear sean, you are correct that the date on the bottle of wine is the year that the wine grapes were harvested, otherwise known as the vintage. Some wines are blends of multiple vintages and are called non-vintage, or nv.
At first, only the lower parts of the bottle could be injection molded, the rest still had to be hand made or blown. However, as time went on, more and more of the bottle was injection-molded and less and less hand blown. I have found the reliability of this method of dating to be almost absolute.