Kaigyokusai Masatsugu (1813-1892) is known as one of the greatest craftsmen of netsuke ornaments.
In this clam-shaped ivory netsuke with only 4 cm square, he recreated the view of Amanohashidate (Bridge to Heaven), one of the three most scenic spots in Japan, by engraving. This microscopic world changes its view according to a visual angle, showing pine trees with various shaped boughs and people enjoying sailing.
In spite of the delicate carving, which is too small to be recognized everything with the naked eye, each motif perfectly holds its shape. This amazing work is just like a microcosm in the clamshell.