Smoked glass tumblers/glasses Riihimaki looking

Hi

Any ideas anyone? Approx 8.5 cm high with an almost Caithness Peat colour.

I've a set of these tucked away in the cupboard.

I've always assumed them to be Luminarc. They're nice-looking and practical, but fairly 'meh' quality and often to be found in darkened cobwebby corners of charity shops.

I'm thinking 1970s habitat type glass?

Cobweb corners, but that's where the good stuff is :0)