Dating pepsi bottles
Also, the format and space constraints of a journal article do not allow for the elaboration and illustrations necessary to make a key function fully Jones b. 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. For brevity, most of the specific references are not noted in the key's narratives.
Other diagnostic tools must be used to date these items. If you can see a small depression which looks like something has been broken off, then such a bottle is one of the earliest versions. The blowpipe style pontil scar puts the date of this bottle as no later than approximately and does indicate that it could date back to or even before. Because of the likely regional distribution of the Celro-Kola product there would likely be less information available on it.
Once again more information could be found on these bottles by searching the internet. In short, there was and is nothing to stop a glassmaker from using an obsolete method in the production of a bottle. As such, let us learn how to identify an old Pepsi bottle. Most free-blown bottle date prior to and can be much older. This question deals with whether the base of a bottle has a pontil scar, and if present, what type of pontil scar.
Place a beer bottle crown on the opening of the bottle. Having stated the above, there are still many diagnostic features or characteristics that provide a high probability of both dating and typing a bottle with some precision.
Instead, there is one located near the base of the neck indicating that the neck ring mold portion of the parison mold produced the finish, neck, and a portion of the shoulder. Using physical, manufacturing related diagnostic features, most utilitarian bottles can usually only be accurately placed within a date range of years i. This bottle is probably free-blown or dip molded. This will be noted where known. If the bottle seems very old, try looking at its base.
This feature makes it likely that this bottle dates from or after the late s. This bottle has a side mold seam that distinctly ends right at the base of the finish. However, these bottles lack other mouth-blown characteristics and have one feature that is only found on machine-made bottles made by a press-and-blow machine - a valve or ejection mark on the base. Acceptance often occurred over a period of many years or decades in some cases. This is consistent with the very flattened embossing on this bottle can not be seen in the picture.
Before jumping into the key, it must again be emphasized that no single key can get a user to an absolutely precise date for any bottle. All this adds to the fascination with bottle making, but makes systematic dating similar to solving Rubik's cube - ostensibly simple on the surface but complex in practice. Published works generally cover either a particular city, region, or category of bottles.
The bottle also does not have a ground down surface on the top of the finish. The overall crudity of the bottle would indicate a manufacturing time on the earlier end of this range.
The picture to the lower right is a close-up of finish of the Mission bottle. This is where the two bottles quickly diverge in the key. Produced during the era where all bottles were an relatively rare and cherished commodity to be discarded only when broken i.
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