the pontil is actually broken glass where the metal rod used to hold the bottle while the lip was form was broken off leaving a sharp scar.Beginning collectors often confuse an Owen's ring with a pontil mark and it is easy to see why this happens.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.While running a bottle through the key questions, the user is frequently directed to move to other website pages to explain diagnostic features and concepts as well as to add depth and/or precision to the initial dating estimate.
Bill Lindsey discusses antique bottles, including mouth blown bottles, bitters, figurals, inks, medicines, flasks, and many other varieties.
Most bourbons and ryes had a tax strip seal over the cap up through 1985.
After that, several brands continued with a “faux” tax strip, which looked similar to a tax strip but wasn’t an official government item.
There are several clues to assist in identifying the year and distillery of whiskey bottles.
Most bottle manufacturers molded the year into the glass at the bottom of the bottle in 2-digit format.
The picture below at the left shows an iron pontil on the base jof a historical flask circa 1865.