Pink/purple bottle just unearthed

Dom

I was wondering in the woods, Kentucky. Found this bottle on hillside in dirt. Rinsed out most of the dirt. Has an odd shape and color. Anyone have any ideas on how old and use? Almost looks like a glass patch at the bottom face with a small thumb nail size indent. Seams up to the lip. Bubbles in the glass. No markings.

Chris

Thanks for posting. You have an early 29th century whiskey flask. It predates 1915-ish - look for other posts on this site which discuss manganese in the glass