help with i.d. mid-century scandinavian "microphone" glass ware

I have a set of 6 of these glasses I am unable to identify the maker and would appreciate any help. The glasses appear to be of mid-century Scandinavian design/origin. They are clear glass and appear to be handmade as they have a soft indented pontil mark on the base. The solid thick glass "stems" have 1 or 2 small minor bubbles. As you can see they have what I call a "microphone" shaped appearance with a slight taper from base to where the stem meets the cup. They measure 5 1/4" tall, 2 1/8" diameter at cup mouth and 1.5" at stem base. The "cups" on top measure 2" deep. I have seen similar designs but with more of a taper where the cup meets the stem. Any help would be greatly appreciated.
Thanks