An 11-year-old Chinese boy has discovered a 3,000-year-old bronze sword in a river in Jiangsu Province. Archaeologists have dated the weapon to either the Shang or Zhou dynasties — the dawn of Chinese civilization. The 26 cm (10") long sword appears to be of both decorative and practical use. A major dig is now planned for the area.
Well, it's a quick process in Photoshop, but here we go. I took a picture of my Roman sword, aka gladius, and tried to scale it to match. The Roman sword has a 20 inch blade, 27.5 inches overall. Maybe the scale is a bit off, but the Chinese relic certainly seems more like a long dagger. But we have to look at everything.
From the image, we can see that appears to be a double edged weapon, diamond cross section or a high ridge down the middle, not much of a taper for width, and we can't judge the distal taper, aka thickness, but considering all of these things from the blade...it looks like a slashing item that can also be used to thrust.
If we go on the images alone, and take the measurements from the article as incorrect, then it would likely be about a 14 or 15 inch blade and possibly qualify as a short-bladed sword, especially given the multiple use of cutting and thrusting.
If the measurements from the article are correct, it is an interesting long dagger. For comparison, a butterfly sword from Chinese martial arts has a fifteen inch blade, but is single edged.
Just some thoughts.