TÜV-Certified
Quality Management
Consignors want to place their collections in the best possible hands. And buyers’ expectations regarding the proven quality of our philatelic and postal history offerings continue to grow. In addition to current certificates of authenticity and quality issued by renowned philatelic experts, the topic of quality assurance therefore holds exceptional importance at the Heinrich Köhler auction house — both for our clients and for our staff, who follow clearly defined processes to meet the high quality standards of consignors and buyers.
First and Only Stamp Auction House Worldwide
To provide you with top-quality service with the utmost care, we undertook an extensive certification process and were awarded the DIN ISO 9001 certificate. This standard is normally used by TÜV for the qualitative assessment of work in industrial companies. We adapted the process and became the first and only stamp auction house worldwide to achieve this certification.
Maximum Level of Trust
The ISO certificate stands for top quality and professionalism, exceptional diligence, and the highest level of trust. It is important to note that this certification is not an industry requirement — at Heinrich Köhler, it is undertaken exclusively and voluntarily in the best interest of our clients.
What happens next? The choice is yours.
Home visit
Would you like to have your treasures appraised? Our experts will be happy to visit you.
Callback
Would you like to know the value of your items? Schedule a callback now and have your treasures appraised free of charge by our experts.
Estimate
Do you know the true value of your items? With us, you can have your treasures appraised free of charge. Take advantage of our expertise and discover the real worth of your collection.