On first page signed ball-point pen drawing by Hans Erni.
Dated dedication.
In the colophon typographically numbered: 151.
Neuchatel, Éditions de la Baconnière, 1955.
Paperback. 4°. Paper-bound. Dust cover;

Booklet. Charly Guyot. Conquête du temps, trois peintures de Hans Erni.
On first page signed ball-point pen drawing by Hans Erni.
Signed dedication.
La-Chaux-De-Fonds, édité par la chambre Suisse de l'horlogerie, 1958.
Paperback. 4°;

Exhibition catalog. Retrospektiv-Ausstellung Hans Erni,
24th May - 16th July 1966.
Fineliner drawing by Hans Erni on inner page of book cover. Signed and dated dedication.
Cologne, Baukunst, 1966. Paper-bound. 4°.

Provenance:
Berthe Kofler Erni (sister of Hans Erni);
Swiss private property. (3).