Dimensions: 32 x 26.5 cm (visible size)
We thank the Otto Nebel-Stiftung, Bern, for the confirmation of this work.
Signature: Signed and dated lower centre: NEBEL - 1948, as well as numbered, inscribed and signed on the cardboard: Ü. Z. 230 / 1948: "Glückwünsche". NEBEL.
Image rights: Courtesy of Koller Auktionen
Collection Kenda Bar-Gera, Zurich.
Private collection Switzerland.