Arts Asiatiques : Chine, Tibet, Népal - Koller West Auction's catalog from Koller Auctions SA - sale ends the 17 November 2015 | Auction.fr | English
Divers Koller West Auction's catalog from Koller Auctions SA - sale ends the 25 March 2015 | Auction.fr | English | Page 3
Koller Auktionen AG, Zurich, Switzerland
Catalogue de la vente Peintures Koller West à Koller Auctions SA - Fin de la vente le 25 mars 2015 | Auction.fr
Koller Auctions Zurich, CH – Bid Online At Invaluable
Koller Auctions Zurich, CH – Bid Online At Invaluable
Helmut Koller - auctions & price archive
Koller Auction House
TELESKOP MIT STATIV, deutsch, Anfang 19. Jh. - Sig. 'Utzschneider und[...] | lot 5318 | Divers Koller West at Koller Auctions SA | Auction.fr | English
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Joaillerie part I Auction's catalog from Koller Auctions SA - sale ends the 17 June 2020 | Auction.fr | English