1.   Title: Caligraphy
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
2.   Title: Landscape
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
3.   Title: Woman
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
4.   Title: Woman pruning flowers
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds