The bottles used for illustration are a small but diverse assortment designed to give users guidance on how to work a bottle through the dating information to answer the Homepage's primary question #1 - What is the age of the bottle?) to the specific dating questions on the Bottle Dating page are included so that a user can reference the necessary portions of that page.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?Since there were hundreds of thousands of uniquely different bottles produced in the United States (and Canada**) between the late 18th century and the 1950s (Fike 1987), it is beyond the scope or even possibility of this site (or website or book) to provide specific details about more than just a tiny fraction of a percent of that variety of bottles.If the specific attribute is no known, you can enter "unknown," where allowed.You must enter all of the attributes for the engine to function correctly and give an accurate estimate.
The Bureau of Land Management (BLM), an agency within the U. Department of the Interior, administers 261 million surface acres of America's public lands, located primarily in 12 Western States (including Alaska).
Each of the green question hyperlinks result in a pop-up page showing the particular question on the Dating Page; once read it should be deleted to avoid clutter.
To return from other accessed hyperlinks, use the back arrow on your browser.
This dating engine will estimate the age of your glass bottle based on its various attributes.
Enter each of the following attributes of your bottle.
Only bottles from the Canada and the United States are currently supported and dating ends at 1920.