In short, though a lot of information is available there is still a lot yet unknown; the author of this website is a member of a group that is currently pursuing that task..on that below...This important website section is devoted largely to the published articles of the Bottle Research Group (BRG) members - past, present..future (more below) - on most major bottle producers in the U. and a few Canadian, Mexican and English manufacturers..free of charge!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.The subject of bottle makers marks is a complex one - as is virtually everything to do with bottle dating and identification.However, the subject is important to refining the estimated date range for the manufacture of a bottle, how the bottle was made to some extent, and for the determination of origin (website "goals" #1, #3, and #4 noted on the Homepage). in a circular body plate (the reverse side is also embossed THIS BOTTLE / NOT TO / BE SOLD). Husting was in business under his name from 1877 to 1900 (Van Wieren 1995) which more than spans the time that Cream City Glass was in business, producing a certain (as certain as the historical record is accurate) date range for the production of this bottle to between 18.Supplementary files to complete each alphabetical section - e.g., "Preface/Introduction & Table of Contents" and the pertinent "List of Factories" and "Logo Table" of actual bottle markings - will also be listed in the appropriate alphabetical section.Currently (December 2015) the "A" through "G" Makers Markings sections are complete.
The information below directs a user towards some of these sources of information or provides links to other works that will assist in the interpretation of most known makers marks.If the mark was used for many years, we may have to rely on other considerations in order to date the piece within the mark's span of years.(Website author's note: "considerations" would include manufacturing based diagnostic features - a primary goal of this website - and/or local research in to the user of the bottle, if that fact is known via embossing or labeling.) If the period of use of the mark was short, the age of the bottle may be pinpointed to a short period of time.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.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.This work will be a massive treatise on American glass container manufacturers from the late 18th century to the present day.These new/revised articles are noted below followed by the publishing date.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.