Hi Robert,

Thank you for contacting Mearto with your appraisal inquiry.

What an interesting thing. I can make out "The Glass" and "1990"; the other writing was, as you rightly point out, less easy to read and one word looks vaguely like "You" with the other inscription possibly a signature. I even ran this through AI to see if it could find a digital match and came up with nothing. The signature does not immediately resemble well-known makers such as Bertil Vallien, Kosta Boda, Jon Kuhn, or Correia Art Glass. I can say that the writing was likely applied with a diamond-point engraver and is not acid-etched, though that in itself does not help in an attribution.

The gold leaf or gold aventurine inclusions, along with deep cobalt blue casing, is characteristic of the "sommerso" effect often seen in works by Murano glassmakers but those would have been unlikely to use the English words "The" and "Glass".

This is most likely an American or English studio art glass piece, made in the late 20th Century (1990), that has a fair-market value of between $300 and $500, though if the inscription could be read and attributed to a particular maker, could be worth more at auction.

Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto.
~ Delia