Shunga. A courtesan slips out of a boring party to be with her favourite lover. Woodblock-printed. According to register one of nine sheets of lovers from a series.
<a rel="nofollow" class="external free" href="https://www.britishmuseum.org/collection/object/A_OA-0-116">https://www.britishmuseum.org/collection/object/A_OA-0-116</a>