hello,burdie how are you i have been diging bottles for a few years and the bottle you found is around the mid 1890's. most bitters bottles are very collectable. the bottle you found reminds me of a "father john's" bottle that we dig here in bangor maine. the bottle you found was used for.... "Purify the sewers of the body and stimulate the digestive organs to maintain health, strength and energy. Prickly Ash Bitters is a tonic for the kidneys, liver, stomach and bowels. Sold by Harbert & Sheldon. i hope this helps you a bit. if i were you i would go pic around where you found it maybe thers more there. great find.
ben.