also: いたぶね
plank raft; flatboat
A simple raft or boat made of planks, used historically for transport or fishing.
In the Edo period, some merchants traveled down rivers on plank rafts.
seafood display stand (Edo period)
A historical term for a stand used to display seafood for sale, shaped like a small boat.
At the fish market, they sold fish arranged on a display stand called 板舟.
Compound of 板 (ita, 'plank') and 舟 (fune/bune, 'boat'). The reading いたぶね shows rendaku voicing of ふね to ぶね.