Hi Steve,

Thank you for contacting Mearto with your appraisal inquiry.
Chihuly's Persian art glass wall pieces are typically estimated at about $2,000-4,000 per piece; they bring a higher price if the colors are more vibrant and varied rather than the monochrome palette of your set.
Based on the photos and information provided, and subject to examination, this is:

Dale Patrick Chihuly (American, Born 1941)
17-piece Sea Form Persian Art Glass Wall Sculpture, early 21st Century
In a uniform dark green/gray palette of varied sizes; client says these are signed
(DIMENSIONS)
CONDITION: value conditional on authentication and in good condition
PROVENANCE: acquired from Chihuly in 2004
$35,000-65,000*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Because your item has a fair market value of at least $5,000 and you indicated an interest in selling it, one of our representatives will reach out by email in the next day or two to provide some information on options for consignment and sale. If you have any questions in the meantime, please just let me know, and thank you again for using Mearto.