Valuation and pick-up by appointment only. View Covid-19 measures.

Our team members

Pieter-Jan Louwerse

Manager of valuation and auctioning

Bram Bouwens

Valuer of porcelain and timepieces

Johan de Ruiter

Managing director

Mark Haasnoot

Certified Appraiser/Valuer

Tim de Gooijer

Valuer antiques and silver

David Megchelsen

Valuer of gemstones

Leendert-Jan de Ruiter

Swarovski advisor

Sjaco de Ruiter

Commercial director and coins, jewellery and diamonds advisor

Jaco Groeneveld

Banknotes and coins advisor

Leon Steen Redeker

Watches advisor

Arjan Herweijer

Jewellery advisor

Leon de Ruiter

Director and diamonds, jewellery and watches advisor

Geertjan de Keijzer

Valuer of gold and silver

Arjan IJsselstein

Assistant auctioneer

Jos Lock

Assistant auctioneer