I've often wondered what the 'scorpion marks' are. It says they're glass defects
on the clowns site above. To me, it sounds like the 'scorpion marks' are probably shear marks where the glass was cut off to form the button, nose, or top of the hat. You sometimes find them underneath handmade glasses/goblets, where they're sometimes mistaken for letters or numbers.
Anyway, manufacturing marks
sounds much nicer than 'defects', doesn't it? :wink: