Attribution
Atelier 'des diptyques à décor de roses' (R. Koechlin in a manuscript letter to Dr. Thoby).

Hinges
Traces of two missing hinges on the left side.

Reverse
Flat and smooth. Longer edges slightly chamfered.
Labels with inscriptions: 'COLLECTION DU DR P. THOBY. NANTES I'; '+ EXPOSITION D'ART ANCIEN + NANTES 1924' and 'Thoby 92'; 'EXPOSITION D'ART RELIGIEUX + 1933' and 'LA PSALLETTE DE NANTES 306'; '41'.

Object Condition
Hole in the upper left corner and to the right, near the edge. Missing: left forearm of the kneeling man.
A few abraded areas.

Provenance
Collection of M. Coyaud, Nantes: his sale, 29 January 1920; collection of Dr. Paul Thoby, Nantes (no. I): his bequest to the museum in 1969.

Bibliography
P. Thoby, carnet n° 48, Ivoires, Dossier Thoby, Archives du musée Dobrée [s.d.; handwritten], no. I.
Exposition d'art ancien au château des ducs de Bretagne, exhibition catalogue, Nantes, Château des ducs de Bretagne, June-September 1924, no. 92, fig. p. 33. (then in the possession of Dr. Thoby).
Programme de la Maîtrise de la Cathédrale (Nantes, 1927), front page illustration.
P. Thoby, Ivoires gothiques, Bulletin de la Société archéologique et historique de Nantes et de Loire-Inférieure, 69 (1929), pp. 129-149.
Exposition d'art religieux à la Psallette, exhibition catalogue, Nantes, Psallette de Nantes, 1933, no. 306.
Art médiéval de France: collections du Musée Thomas Dobrée de Nantes, exhibition catalogue, Fribourg, Musée d'art et d'histoire de Fribourg, 22 June-24 September 1972, no. 101.
Art et liturgie au Moyen Âge, exhibition catalogue, Angoulême, Chambéry, Caen, Nantes, Nice, December 1976-January 1978, no. 145.