Dating american bottles

When beer in cans was first introduced, the public had to be sold on the benefits of beer in cans.Early (mostly 1930s) cans have extensive text on a back side extolling the virtues of cans as a vessel for beer.US Patent and Trademark Office: online, searcable database."Who's Who in Brew": this is a listing of all known brands of American beer and their approximate dates of production from 1933 through 1978.Consumers also had to be educated on how to open the early flat tops so earlier (mostly from 1935 through about 1950) flat top cans had instructions on how to open the cans on the back.The first such "instructionals" often featured a picture of a churchkey opener that vertically spanned from the top to the bottom of the can.A few cans were filled prior to June 01, 1935 (like the very rare pre-tax Kreuger Ale & Beer set acquired by in January, 2007).

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First check out the obvious features and characteristics of the beer can: A statement like "Internal Revenue Tax Paid" was required to appear on beer cans from June 01, 1935 through March 30, 1950.This "A" could be another indication of "American" but this is not known for certain.The final small symbol after the "A" indicates the calendar year in which the beer can sheet was produced.US beer cans exported oversees during World War II had a statement like "Withdrawn Free of Internal Revenue Tax for Exportation." Older cans (1935 to mid-1940s) were made of a thicker gauge steel.As time passed and manufacturing processes improved, the gauge and weight of cans decreased.The Keglined trademark was followed by patent information which changed over the years.We can narrow the date the can was produced by interpreting this patent information as follows: 1935 - 1937: "Patents Pending" 1938 - Mid-1940s: "Pats., 1,625,229 - 2,064,537 others pending" 1947 - Mid-1950s: "Pats., 2,064,537, 2,259,498 - 2,178,618" printed across a full length, vertical panel."Beer Can Collector's Bible": by Jack Martells has photographs and approximate dates of thousands of beer cans."United States Beer Cans, Vol I": by the Brewery Collectibles Club of America, discusses methods of dating flat top and cone top beer cans.Cans were made (mostly) of steel from 1935 through about 1980.With many exceptions, steel cans generally date between 19 and aluminum cans date after 1980.

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