Probably from the French Tonkin campaign of the 1880s.
Large, heavy single-edged example with iron mounts.
With exceptionally wide blade, forged with a hardened leading edge.
A fine example with silver overlaid spearhead and silver ferrule with niello inlay.
Modeled after the Chinese "guan dao", made of lacquered wood.
The design, overlaid in silver, gold, and copper, over a crosshatched background shows dragon amongst clouds.