Bronze sculpture 'Sun Monument' by artistic duo Frans & Marja de Boer Lichtveld during 2000-2005. The couple used the cire perdue technique, with a unique sculpture as result. In this technique the wax is lost during the process of casting the bronze. The couple made artworks together for public spaces domestically and abroad. Their collaboration started in 1970 and endured over 45 years. Marja is still active as artist.