Single year type commemorating the 1964 Summer Olympics in Tokyo
Obv: Mount Fuji with cherry blossoms, “State of Japan” above and denomination below
Rev: Big denomination and Olympic rings, cherry blossoms on either side, “1964 Tokyo” above and “Year 39 of Shōwa” below
Y# 80
92.5% Silver (ASW 0.5948 ounce), 35 mm