Shunga, opening from colour woodblock-printed book. (No.3 -- Lane 1997). Lovers and unravelled obi. In this version, there is not a sign in obi.
circa 1812 <div style="display: none;">date QS:P571,+1812-00-00T00:00:00Z/9,P1480,Q5727902</div>
<a rel="nofollow" class="external free" href="https://www.britishmuseum.org/collection/object/A_1972-0724-0-18">https://www.britishmuseum.org/collection/object/A_1972-0724-0-18</a>