Very cool! Maybe it’s the twisting screw bottom, though most likely the draft angles and measurements etched into the crystal glass. Very industrial, very “I want I want!”
“The Ruckl Crystal Glassworks in the Czech republic manufactures an extensive range of cut 24% leaded crystal in a wide variety, from the simple to the extremely complex, with gilt, hand painting and sandblasting.
Inspired by the sometime archaic-seeming world of the engineer, each piece in the the engineering collection is so named for the etched designs on all the pieces involving the dimensions and spec’s of each piece.
The engineering collection also includes three additional lines: involute gearing, basic quotation, and the splined shaft designs.”