Koller Auctions
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Koller Auktionen is a Zurich based auction house. For mor information, please see: https://www.kollerauktionen.ch/en/home.htm. Accessed 2 June 2021.
Koller Auktionen is a Zurich based auction house. For mor information, please see: https://www.kollerauktionen.ch/en/home.htm. Accessed 2 June 2021.