Unusual glass glass tankard

I have had this glass tankard for many years it’s a unusual glass sides hight 5” glass circular 3” side pattern looks like noughts and crosses
Instead 2 squares and one nought three lines changing patterns on both sides same with the bottom plane glass handle and plane at the top. It has a sick on label saying 1666 in gold colour, and a four leaves split in the middle in gold on a black background. Never seen a glass tankard like this before. Any hall would be grateful received.