Do we call you Sklo for short and does this one do grumpy ?
Marcus will do, or Grumpy
As to who made the glass-blower, to the best of my knowledge, a Czechoslovakian company called Feigl and Moravka (Morawetz)
who were around from just before the first world war, until the end of the second.
Height is 160mm, so a little over six inches, and base is 130mm square (5 inches or so) and pressed sodium-potash glass.
He dates to the 1930s. He will not be being used as an ashtray.