Ecart International,
Model created by Jean-Michel FRANK (1893-1941)
"Stage director" armchair with front and rear X-shaped legs with profiled legs and spacer with cylindrical cross member and round and flat facade brackets and detached armrests.
White leather backrest, armrest cuffs and seat back.

Bibliography:
The original model is presented in the following book: Léopold Diégo Sanchez, Jean-Michel Frank / Adolphe Chanaux, Les Éditions du Regard, Paris, 1980 (2nd edition), model reproduced on full page p. 109.