One Brand ― One Team ― One Goal

C.G. Collectors World

All C.G. Collectors World members bind themselves to safeguarding lasting values for our customers with professional competence and personal passion. Entrepreneurially autonomous, we are closely linked within this owner-managed group of companies. We share the same values and goals, always apply the highest standards to know-how and quality, treat each other with respect and are open to innovative solutions. As a team, we can act flexibly and combine all our strengths so as to offer customers optimal service, not only in Germany but all over the world.

At our headquarters located in Bietigheim-Bissingen, we develop cross-company strategies and concepts, direct consignments and material into the relevant logistic channels, prepare events and welcome customers and guests from Germany and abroad. Whether you live in the North or South, the East or the West, we offer you the full range of services at all locations.

Experience what makes us special!

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Auktionshaus Christoph Gärtner GmbH & Co. KG

Meeting Place for Collectors, Dealers, and Investors from All over the World

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Christoph Gärtner GmbH

Consulting, Liaising, Purchase and Sale

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Kompetenz-Zentrum West Auktionshaus Christoph Gärtner GmbH & Co. KG

The regional base in North Rhine-Westphalia

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Auction Galleries Hamburg vormals Schwanke GmbH

The Specialists in Postal History, Classic Rarities, and Literature

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Edgar Mohrmann & Co. Internationale Briefmarkenauktionen GmbH

The Traditional House in Hamburg