Antique Greentown chocolate glass mug, Herringbone Buttress

Antique chocolate, carmel glass mug, stein. No makers mark, appears to be Greentown, herringbone buttress pattern from 1899/1900. It looks like a carmel and cream swirled slag or milk glass but it seems to simply be called chocolate glass and it has weight to it. Raised herringbone stripes down the sides of the mug with a stick like handle. 2 chips on the rim as shown in pics. On the bottom rim there are 2 lines opposite each other, it seems odd to have a crack in the same spot on both sides and nothing in the middle, completely intact but I am no expert, please see last pic. Either way, very unique and hard to find piece even with it's blemishes. P-A8 I may/may not entertain offers but lowballs will be declined. I do my best to research and price fairly.