Iconclass an iconographic classification system. 2-3 (1974)/ compl. and ed. by L.D. Couprie with R.H. Fuchs, E. Tholen / H. van de Waal ; completed and ed. by L.D. Couprie with R.H. Fuchs ... [et al.] ; Koninklijke Nederlandse Akademie van Wetenschappen. System