Clear, ridged glass piece; found in creek in Clifton, VA (a town dating back to the 1700's)
I am new to the forum; thank you for allowing me access. I found this piece of glass in a tributary to Pope's Head Creek in Clifton, Va. At first I thought it was a piece of a telegraph insulator because they have been found in the area but a search on line did not reveal any insulators with a ridged exterior. I also did an image search but came up with clam shells... there are no markings, the inside is hollow like an insulator but textured not smooth.
Any help is appreciated.