Hi Joanna, Thank you for contacting Mearto with your appraisal inquiry. Based on the photos and information provided, and subject to examination, this is: An unattributed vintage Studio art glass centerpiece bowl American or European, mid/late 20th Century Of circular section, with "pulegoso" or air beads throughout; pontil mark to the bottom. Apparently unsigned 25 inches diameter CONDITION: appears to be in excellent condition; value assumes no chips, cracks, breaks or repairs. PROVENANCE: gift from a client. $400-600* *represents a fair-market value for auction purposes; retail or asking price may vary. Please let us know if you have additional items to appraise, and thank you again for using Mearto.