We are open to the public Monday to Friday from 10 to 12.30 a.m. and 2.00 to 6.00 p.m., on Saturday 10.30 to 12.30 a.m. and 2.00 to 5.00 p.m. Antiquariaat Sanderus, named after the famous Flemish historian Antonius Sanderus, is specialized in antiquarian books, medieval manuscripts, and antique maps and prints from the 15th to the 18th century.