MCM vintage Sweden hand blown goblets, Milnor crystal wine glasses deep blue ice Denby glassware

1970s vintage Milnor / Denby crystal wine glasses, hand blown glass, made in Sweden (no label or signature). I believe this is the 'blue ice' color - it's a beautiful very unusual color, a deep blue with a hint of warmth to the color. Kind of a smoky indigo blue.

This is a set of six goblets, 5 3/4" tall. They've been used, and one has a chip to the foot (see photos).