“Two lovers under mosquito netting. There’s another less explicit version of this design (lacking the genitals).”
Yakumo no chirigi is one of the best-known series of the Meiji period.
The less explicit version is depicted on p.236 (Fig.99a) in ‘Japanese Erotic fantasies’ by Chris Uhlenbeck.
Antique Japanese color woodblock. Shunga (Erotic print).