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Additional information and estimates are based on the empirical observations of the author over 50 years of experience; this is often but not always noted.

Various terminology is used in the descriptions that may be unfamiliar if you have not studied other pages on this site.

Prohibition makes a very convenient dating transition point for liquor bottles which is not available for other types of bottles.

However, there were some machine-made liquor bottles and flasks that most definitely pre-date Prohibition.

(It should be noted that implementation of this requirement began in late 1934, so some bottles made that year will have the noted embossing.) This regulation was repealed in 1964 giving an effective dating tool of 1935 to the mid 1960s for this diagnostic feature (Munsey 1970).

Be aware however that for some years after 1964 liquor could still be found in bottles with this embossing since not all liquor producers switched immediately to new bottles due to the expense of new molds or to deplete an existing supply of bottles (Ferraro 1966).

Each of the pictured bottles has a relatively short description and explanation including estimated dates or date ranges for that type bottle and links to other view pictures of the bottle.

Liquor of all types - bourbon, rye, gin, cognac, scotch, etc.

- was bottled in a wide variety of bottle shapes and sizes ranging from small flasks that held a few ounces to demijohns and carboys that held gallons.

It is an almost absolute fact that if an American made liquor bottle is mouth-blown it pre-dates National Prohibition.

It is largely true, though not nearly absolute, that if a liquor bottle is machine-made it dates from or after Prohibition.

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