Dear Uwe, this bell pull reminds me of some beadwork that the Iroquois Indians of the American northeast did as souvenirs around the 1930's. If you go to the the big E auction site and search for the keywords "iroquois beaded" you will see many of these items. I do believe they are Bohemian and cousins to our friends the "Russian" blues. Hope that helps and thanks for showing, it is very impressive!

Best regards,
Melissa