Hello, I have a 1923 Pat'D Dec. 25, 1923 20 inch bottle which I am considering putting on ebay. Lots of good information on this thread especially the "Illinois" bottle markings which I was unaware. The bottom of my bottle has a "6" under the circle with the "I" and a "7" to the right of the circle.
The bottle is in great shape including the cap. There appears to be the most slightest hairline cracks on the bottom of the bottle and the inside of the metal cap has some rust but no big damage. What would be the going rates of a bottle like this on ebay and is there great demand for a collectable like this? I have amateur knowledge at best and would appreciate any comments. Thanks,