1.   Title: Caligraphy
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
2.   Title: Japnese note card
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
3.   Title: Japnese note card
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
4.   Title: Japnese note card
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds