Thank you and enjoy browsing my store! Here is a VERY old Durosil glass chimney for an antique oil lamp. I think this was hand blown.
The glass is wavy and there are multiple air bubbles. The rim edges are wavy too. The really unique part of this is that there are 2 widths. I call them fat and thin.
You can clearly see this in the first 2 pictures with the ruler as a scale. You can see the bump looks wide from one side and thin on the other. I did not see any damage. I DID NOT CLEAN THIS.
IT NEEDS TO BE CLEANED, BUT I LEFT IT AS I BOUGHT IT. IT WILL BE MUCH MORE CLEAR AFTER BEING CLEANED.Please see pics for more details. I CANNOT CHANGE IT OR REMOVE THE OPTION.