I may have posted these here years ago, but could not find the thread. At anytime prior, they would have been posted as unknown production. I have searched for many years, with suggestions that they were by Yamato in Japan and designed by Russel Wright as part of the Theme Formal line. It has also been suggested they could be Scandinavian, but an unknown source.
I recently finally identified these solidly and they turned out to be extremely rare..... hence the difficulty identifying them.
These are glasses by Morgantown, and designed by the classic American designer George Nelson. Nelson apparently did very little dinnerware, and finding these is extremely difficult. They were produced in 1956, and precede Them Formal by Russell Wright by about 6 years. I was also informed by another collector that the Morgantown glass these were produced with would have been lead crystal with a lead content of around 15%.
After finding an attribution, I contacted Wright Auctions in Chicago, who specialize in Mid Century design, to have it confirmed. The president of the company responded by saying that he had to confirm them to be George Nelson before responding to me, as their auction house had never seen an example in about 20 years of doing mid century offerings.
There is apparently one other shape in the grouping, that I do not have. I have hung on to these for over 13 years after finding them, as I had a gut feeling they were "something". They turned out to be about as rare as chicken's teeth.... :-)
I thought the members here might like to see them. They stand 4.25, 4.75, and 5.75 inches in height. I have 5 of each shape.