This portfolio, titled In Japanese Style (В Японском Стиле) bears such a strong resemblence to Mario Tauzin’s work, which became widely known after the first International Erotic Art Exhibition in Lund, Sweden, in 1968, that we can only imagine that this is Sapach’s response to Tauzin’s clean lines, reset into an oriental context. You can see Tauzin’s Erotic Portfolio, which was created as early as 1946, here.
The first ten original drawings are accompanied here by three others in similar style, and two related coloured drawings which may or may not have been included in what would appear to be a private commission.