Bidspirit auction | Erotica - multiple participants, Japanese

Erotica - multiple participants, Japanese bone carving - Four figures playing on a swing holding in their hands sexual organs.  A high quality bone carving, decorated with black details. Signed by a master in red. In a very good condition, on a matching wood stand  length- 11 cm , length including the stand- 14 cm, height including the stand- 9 cm.