Datingmakers com

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This alphabetical grouping of individual tables is located further down this page below the following box or by clicking on the following link to "jump" to that section: (As an alternative, consult the Glass Factory Marks on Bottles website.

The following link will take one to David Whitten's exceptional webpages that cover most known American glass makers marks assigning specific markings to the known (or strongly suspected) user of the marking - David Whitten is a serious avocational student of bottle and insulator makers marks and his pages are a wealth of information on the subject.

Some glass containers make quite obvious which glass company made the item. This bottle was certainly made by the Cream City Glass Company (Milwaukee, WI.) which operated from 1888 to 1893, possibly at plant #1 as it is believed they had two separate plants at the same location and the number "2" has been observed on at least one other bottle with the same makers marking (Lockhart et al. This is typical of the type of makers marks found on the bases of mouth-blown beer bottles produced from the 1870s through the 1910s until National Prohibition and is an example of how useful makers marks can be for the accurate dating of historic bottles.

For example, the quart canning jar pictured to the right is boldly embossed on one side with PACIFIC / SAN FRANCISCO / GLASS WORK (sic) making it easily clear that the jar was manufactured by the Pacific Glass Works of San Francisco, CA. (Photo courtesy of Bill Lockhart.)The following is quoted from the introduction to the book Bottle Makers and Their Marks by Dr.

His webpage is also a great resource for those wishing to figure out what an observed makers mark stands for on a bottle they may have and an approximate date range.

Whitten's site typically also includes some brief history behind the companies.

Currently (December 2015) the "A" through "G" Makers Markings sections are complete.In order to make full use of this comprehensive information, however, one has to know what mark or marks were used by what glass or bottle manufacturing company. for the American Bottle Company) or a distinct logo or symbol, a user must first determine the origin of that makers marking.If not known and the marking is either a clearly identifiable alphabetical letter or letters (like A. This can be done by using the appropriate "Makers Markings Logo Table" to ascertain which mark/marks were used by what company.In some instances, lucky for the collector but unlucky for the user of the mark, the period may be reduced to one or two years.One factory making beer bottles in the 1880s, whose ownership, name, and mark changed five times in eleven years, has helped historical archaeologists date a number of sites in the western United States.- Bill Lockhart, Pete Schulz, Carol Serr and Bill Lindsey (Issue #352:1-2; February 2010) The IPG Mark - Not Quite - Bill Lockhart (Issue #356:3; June 2010)The following are some additional articles not specifically related to makers markings or are from other publications, i.e., not Bottles and Extras or The Milk Route (see References page for the source): A New Twist for Uncapping Old Information about Glass Artifacts Bill Lockhart (webpage [2001d]) The Other Side of the Story: A Look at the Back of 7-Up Bottles Bill Lockhart (The Soda Fizz - Jan/Feb 2005) The classic published reference on the subject of maker's markings, as noted above, is the aptly named Bottle Makers and Their Marks by Dr. Published in 1971, this book is a good source of information on bottle makers marks and the history of the companies that produced them.

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