This maple was imported from Japan in 1913 for exhibit at the 1915 Panama-Pacific Exposition in San Francisco, marking the opening of the Panama Canal. At the conclusion of the exposition, the tree was purchased by nurseryman Kanetaro Domoto of Hayward, CA. Passed from father to son Toichi in the 1930’s, the bonsai was regularly exhibited in Bay-area flower shows until the outbreak of hostilities between the U.S. and Japan in World War II. During the four years of the owner’s incarceration, the tree’s roots penetrated the bottom of its wooden planter and entered the earth, causing the tree to rapidly grow beyond bonsai size. Despite its size, it remains a tree of unique beauty and historic interest.