23 years AA locket Sakura tree coin in the shape of the Yin Yang symbol cherry blossom, botanical art hand-drawn with ink in traditional Japanese painting style. The back of the locket has the serenity prayer. Size: 34 x 2 mm. Yin Yang is black and white. Great spiritual gift, especially popular with members of recovery or sobriety programs such as AA or NA, but the coin refers to none of these programs.