Blade for a Straight Single-Edged Sword (Chokutō)

The image shows a black and white photograph of three straight, single-edged sword blades. The blades are laid flat, side by side, stacked vertically, and centered. The top blade is the longest and straightest, with a slight curve at the tip pointing right. The middle blade is shorter and has a more pronounced curve at the tip also pointing right; it has a rough, uneven surface. The bottom blade is the shortest and straight, with a flat, rounded tip pointing right; it also has a rough texture. The background is a plain gray surface, possibly cardboard or paper.