This piece was part of the collection of a lifelong sea glass collector. From what I understand, the majority of the batch was found in Nova Scotia.

This piece measures approximately 2 1/8" in diameter, even though it is not completely spherical. It weighs 158.5g (5.1 oz).

Because of the internal threads, I am fairly convinced that it was once the top of a glass insulator. Through time and tide, it has been transformed into one of the most interesting beach glass finds possible.

Also included is a bottle top that was also in the collection. It happens to fit perfectly into the hole, and it just looks cool (last pics).

Message with questions. Thanks for looking.