Palm tree
Acacia
Bonsai Tree - Japanese art
Palm branches - Peace - WWI
Nature protection
Rubber factory - Heveadorp
Fungal Cultures - Baarn
Royal Institute for the Tropics - Palm tree
Foriade 1972 - Municipal Driebergen
Tree - Oak - Bergeijk
Book - Herbarium - Wageningen
400 Years Hortus Botanicus Leiden 1590-1990
30 Years Pendulum Forest - Harderwijk
Cranberry - Terschelling
Pine cone - Zundert
Pine cone - Boskoop
