Proper noun
Ketterer (plural Ketterers)
A surname.
Ketterer Kunst GmbH & Co KGThe deep passion for art and a business strategy that combines tradition and innovation have made Ketterer Kunst one of Europe's most renowned auction houses sixty years after the company was founded. Source: Internet
Transcribed and ed., David Ketterer, *Foundation: The International Review of Science Fiction* 28 (Spring 1999): 5–50. Source: Internet