Stone glassworks Waffle 44

Stone glassworks 44mm waffle perc. In like new condition. There’s a slight chip in “s” in stone in the label, but I received it that way from the shop. Comes with the factory one hole slide (not pictured but also not notable in any way). Don’t know if stone (Preston Hanna) still blows glass, but I know these are rare to find now! Used to be a common alternative to the sov stemline back in the day!