Edo period (1615-1868), late 18th/early 19th centuryMakimono (horizontal scroll), ink and colours on silk in silk mounts, depicting scenes of demonic coupling and auto-erotism, unsigned, titled Oshidori higi (Private frolics of male and female ducks); with a wooden storage box. Overall: 32cm x 435.5cm (12 5/8in x 171?in); image: 30cm x 405cm (11 7/8in x 159?in). (2).