The Dutch barge called "tjalk" was a very successful type of vessel for navigation in shallow tidal waters. Their trademark leeboards were used to reduce the sideways drift when sailng close to the wind.
This ship model of an Amsterdam tjalk is 1 : 36 scale. It is a beautiful and finely worked piece of art. Overall length is 63 cm, width 13 cm, height 48 cm. The ship shows the flag of Amsterdam in the mast top.