As the son of painter Marinus Bies (1894-1975) he was introduced to art at a young age. Next to paintings from the 19th century, Ton Bies also sold works from the 17th century and contemporary artists. Moreover, he restored paintings and sculptures. His spouse Trees Bies-Frissen was indispensable in the process of building the business. She handled administration, conducted art history research and frequently assisted in sales.

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