Ai Xuan, Liu Xiaoping, 37.3cm×26.9cm, Sketch, 1974

Ai Xuan, Tibetan Young Man, 38.2cm×26.4cm, Sketch, 1974

Yuri K. Burzhelyan, Cycling Nude, 38.7cm×57.3cm, Sketch

Yuri K. Burzhelyan, Standing Nude, 66.5cm×50.7cm, Sketch

Isai Meerovich Braslavsky, Vacation, 43.5cm×61.5cm, Sketch, 1967

Isai Meerovich Braslavsky, Walk, 52.5cm×39cm, Sketch

Isai Meerovich Braslavsky, Studio, 63.2cm×50cm, 1990

He Duoling, Sketch, 37.2cm×26.1cm, Sketch, 1987

Konstantin Maksimov, Sketch, 54cm×43cm, Sketch on Paper, 1956

Konstantin Maksimov, 100cm×80cm, Sketch, 1987

Andrei Milnikov, Female Sketch, 30cm×20cm, Pastel on Paper

Andrei Milnikov, Male Sketch, 30cm×20cm, Sketch on Paper

Andrei Milnikov, Down, 13cm×22cm, Pastel on Paper

Andrei Milnikov, Woman Nude, 24cm×22cm, Pastel on Paper

Yang Feiyun, Sketch, 20.9cm×14.7cm, Sketch