With total 20 graphics by W. Hartmann, M. Raetz, L. Ikemura, C. Dubois, U. Lüthi, G.O. Melcher, F.A. Wyss, etc.
Different techniques and sizes. All sheets signed. Some numbered and/or dated.
Grenchen, Kunstgesellschaft Grenchen, diverse years. Each in cardboard folder;
- Kunstgesellschaft Grenchen (3). With total 3 graphics by I. Wydler, H.-U. Theilkäs, T. Ruch.
Different techniques. H 200 mm W 200 mm. All sheets signed, dated and numbered: 14/100.
Grenchen, Kunstgesellschaft Grenchen, diverse years. Each in cardboard folder.
Literature: (Raetz) Mason/Willi-Cosandier 227 b; (Lüthi) Mason 186; (Wyss) not yet with Wyss. (8).