Filippovsky, Ruza

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Help please attribution and appreciate now. Technique Watercolor and gouache on paper, size, 45h57, 5 cm at the back of the signature of a pencil Filippovskiy and name Ruza with a year 1955 do you think this work is similar to the work of Gregory Filippovsky Georgievich, who shared a cell with Academician Vavilov N. I. In the lower right corner of the paper is pasted a small gap of about 5 cm Tell me please anyone else met a similar signature Filippovsky on his work?