You could try the Facebook group "Studio Pottery Identification (US)".
If you read the Sothebys article you will find that the "language of the fan" is a myth. It was a marketing booklet distributed by the Duvelleroy...
You might try posting it to the Inuit Art Enthusiasts group on Facebook: https://www.facebook.com/groups/1762808760630400
You have a very interesting fan. Ballooning fans are very collectible. You might try posting your inquiry to the Facebook group "Hand Fan...
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