It also includes "Bottle Dating Worksheets" (pages 51 to 55) by Rebecca Allen and this author to assist in the systematic dating of an historic bottle based on the information in that dating key as well as other information on the website.In part, this book fulfills this authors long time desire to have a hard copy "field guide" version of this website for use by archaeologists (and others) by having at least the dating portions available in printed form to take to the field.If you are interested in identifying what a bottle was likely used for - i.e., what "type" of bottle it is (aka "typology") - the Bottle Typing/Diagnostic Shapes page and the extensive array of related sub-pages should be visited.This very large complex of pages includes bottle type specific sub-pages with extensive style based dating information, including complete scans of 5 different early 20th century (1906 to 1933) bottle makers catalogs spanning the mouth-blown to machine-made bottle manufacturing era!This bottle is an Owens-Illinois Glass Company produced beer bottle made in 1941 by the Oakland, CA. If you are attempting to estimate the approximate manufacturing date - or age - of a particular bottle (or significant sized fragment) the first page to visit would be the Bottle Dating page and its related sub-pages.
For example, there is information pertinent to dating a bottle on virtually every website page.The title of any given page gives the predominant theme of that page and would be the first place to start when pursuing information on that particular subject.However, the process of bottle identification and dating is quite complex with many exceptions; thus, the need for many web pages covering a lot of descriptive information.▪ Field archaeologists trying to identify and date bottles or bottle fragments which are found during cultural surveys and excavations in the United States; ▪ Educators dealing with the subject of historical archaeology; and ▪ Collectors and the general public trying to date a bottle, determine what it was used likely for, and/or begin their search for information dealing with the fascinating world of historic bottles.Some of the embossed markings on the bottle base above are a great information source for 20th century bottle identification; some are meaningless.When possible, the information on this website is given general reliability rating estimates (e.g., high, moderate, low or "usually", "occasionally", "almost always", "almost never") to allow a user some "feel" for the probable accuracy of their conclusion or determination.In addition, there are a hundreds of dating and/or typing determination examples scattered throughout virtually every site page to give the user a feel for the processes involved in dating and/or typing a bottle.In addition, this site also assists the user with these questions: 3.What technology, techniques, or processes were used to manufacture the bottle? Where did the bottle come from, i.e., where was it made and/or used? Where can I go for more information on historic bottles?This site instead attempts to help the user determine some key facts - approximate age & function - about any given utilitarian* bottle/jar based on observable physical characteristics.Hundreds of specific historic bottles are used as examples within the pages of this website to illustrate the concepts discussed; with luck you may find the specific bottle you have an interest in discussed though typically you will not.