Iranian Man and Woman Engaged in Coitus on a Swing

Era: Possibly late Qajar or Early Pahlavi Period, Iran
Date: Early 20th century
Materials and technique: paint on paper.
Kept in Kinsey Institute Gallery
source: [1]
نقاشی اروتیک اواخر دوره قاجار و یا اوایل دوره پهلوی - قرن ۲۰ میلادی - گالری دانشگاه ایندیانا - بنیاد کنزی
Even though the lovers in this painting are dressed in a Safavid style, this painting was perhaps done in late Qajar or early Pahlavi period. To this day, the influence of Safavid art is strong on Persian miniature. A Persian miniature is a small painting on paper, whether a book illustration or a separate work of art intended to be kept in an album of such works called a muraqqa. The techniques are broadly comparable to the Western and Byzantine traditions of miniatures in illuminated manuscripts. Although there is an equally well-established Persian tradition of wall-painting, the survival rate and state of preservation of miniatures is better, and miniatures are much the best-known form of Persian painting in the West, and many of the most important examples are in Western, or Turkish, museums. Miniature painting became a significant Persian genre in the 13th century, receiving Chinese influence after the Mongol conquests, and the highest point in the tradition was reached in the 15th and 16th centuries. The tradition continued, under some Western influence, after this, and has many modern exponents. The Persian miniature was the dominant influence on other Islamic miniature traditions, principally the Ottoman miniature in Turkey, and the Mughal miniature in the Indian sub-continent. -Wikipedia

To learn more about Qajar paintings study this book. [2]