Nakaya Wonder Saw W-300 Double-Edged Saw 1 shaku 1 sun, 1 handle, 2 replacement blades set

This is a set of Nakaya's Wonder Saw, model W-300, a double-edged saw with a 1 shaku 1 sun blade, one handle, and two replacement blades.

The photo showing the replacement blade attached to the handle is from a previous time.
As shown in the photos, the replacement blades are in clean condition as they are still wrapped in plastic.

As stated in the product description:
The fixing screw only needs to be tightened by hand.
Please do not overtighten with a flathead screwdriver, even if it appears slightly loose.

The handle is a recent item, but the blades are from long-term inventory, so the packaging may appear aged.
Please check the photos.

Thank you for looking.