The weight varies between 4.4 and 4.6 grams, and the purity is unknown (sterling silver .925 is used).
Varieties:
- Y# B13.1 (1880) With double wavy water line below lotus. The fish swimming counterclockwise.
- Y# B13.2 (1882) Obverse with four dots (SW) and boxy base (NW).
- Y# B13.3 (1885) Reverse with outer angles, hook opposite dot.
- Y# B13.4 (1888) Obverse with single line base (NW).
- Y# B13.5 (1891) Obverse without dots (W).
- Y# B13.6 (1892) Obverse with emblems rotated 90 degrees counterclockwise in relation to central design.