Update**** So I found the maker and did more research. The name I found and was made in Philadelphia in the 1860's. The key mold was used instead of a punty to hold and the applied lip is in line with the dates this company operated during a decade in the 1860's. The key mold was invented in the 50's and I believe I have answered a lot of my questions other than the value. Please read below to see if my answers are accurate or if anything can be added or corrected. Thanks. I still would like to know how common this is and value.
Found digging in Cincinnati, Oh in William Henry Harrison's town where the old Ohio canal system once ran. This is a small bottle about 3.25" tall and appears to have an applied lip for a cork. It has FA&CO marked on the bottom. There are 2 feint seams running vertically in the bottle and connect to a very feint circle on the bottom. It has many wavy lines throughout and bubbles mostly towards the neck. It looks to be an applied lip but I'm just going off experience I have with borosilicate and being a glass artist when making this assumption. Cuz the lip is very uneven and loopy and appears to have been added. This is clear in color. Thanks for your help. ;-)