Set of three framed pieces composed of : - P. BOULAND (XXth century). Study of a cow's head. Graphite signed and dated "22" lower left. 24 x 30 cm, sheet. - Stanislas LÉPINE (1835-1892), in the style of. Study of a cow. Graphite on paper bearing the stamp of the SCHOELLER collection lower left, attributed in the margin. Sight, 10 x 16,5 cm, under glass. - A. VERHAMME (XIXth century). Study of an Elk. Watercolour, attributed and dated "1811" on the back on a laminated cartouche. Sight, 15 x 19 cm, under glass.