Photos and Museum displays of Netsuke and Inro don't always show the whole set of Netsuke Inro and Ojime and the cord joining the three.
Partly this is because the collector acquired an incomplete set as a "curio" or the netsuke dates to the late 19th century when they started being made and sold separately as objects of art and souvenirs but netsuke are meant to have a function. Sometimes the Inro just has a cord or a netsuke without an ojime or vice versa.
This first image shows how an #Inro opens up to reveal an inner box.
and here we see an #inro with cord and #ojime bead.