This vase is accompanied by a Chinese, late Qing dynasty, exquisitely carved hardwood cover. The fit is loose and the cover a bit small proportionately. As they did not start life together, we are amenable to selling the cover separately should someone have a need. The cover would best fit a large vase with interior rim diameter of no smaller than 4 9/16" (11.58 cm). The cover is 7 5/16" (18.57 cm) with the wood grain (there is substantial shrinkage of the wood against the grain with age.) The cover is in presentable condition with some glue evidence on the interior - probably from refitting after shrinkage.
Since listing this item, someone has suggested its holding fireflies (hotaru) as a possible use.