Karin Hammar candlestick holder.

The Stockholm Glassworks at Skansen was built in 1936, and is currently operated by 3rd generation glassblower Karin Hammar. The roots of this families glassblowing talents go further back into the late 1700's I believe. She specializes in 'Krackelering' her art glass as lightly seen midway in the candle holder. There is some engraving under the foot of this holder, that isn't any larger than 1/2 mm. in size and virtually impossible for me to read.
4th picture courtesy of Karin from a press release.