In the early part of last century, soda water was often sold in drug stores. My grandfathers drugstore in Ferriday, LA sold this when my mom and dad were growing up. It was called Voght's Drug Store and was one of the first places Jerry Lee Lewis and Jimmy Swaggert had a Cherry Soda. They had rows of Seltzer bottles like the blue one you see above. This one is from Allentown, PA and it is the only one I have. I would like to find one from this area but I have never run across one. Coka Cola syrup came in Seltzer bottles too.