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Re: What are these Thonet chairs worth?
The original Thonet chairs date back to the late 19th Century, these later reproductions do not have much in the way of value. Here's a auction link for you to give you an idea of values for originals and later remakes:
https://www.liveauctioneers.com/search?q=thonet+chair&org=yes&hasimage=true&dtype=gallery&type=complete&rows=20&addfq=&fq=&location=&sort=relevance