I'm wondering if this might be by John Walsh Walsh. They made a similar stepped and flared vase, but with flutes, in "moonbeam" and "sunbeam" colouration. This one is slightly smaller at 8"/ 20.5cm. and weighs just over a kilogram and I think dates from the early 1900's. Also the colour looks right for Walsh but I can't find any crackle glass attributed to them.