The oldest embossed bottle I have is an "A. Delpit / No 16 / St. Louis St. / New Orleans" snuff. He moved to this location between 1838 and 1842. He was there at least into the 1850s. The glass is paper thin.
Some people wanted to see more pictures of my "amber" demi. Actually it is dark olive. Now I see how easy it is to take bad pictures without natural lighting! I am posting more pictures of it. And I am including some of an actual amber demi I have. The Olive one is 16" tall about 11'' wide. The amber is 18" tall and 15" wide with a wavy flat bottom.