The Honshu Boshin Wakizashi is advertised as having a full tang construction. Full tang means that the blade of the sword extends all the way through the handle, providing strength and stability to the overall structure. In a full tang design, the handle scales or grip material are typically attached to the tang and secured with pins, rivets, or other fastening methods.

However, it's important to note that without physically examining the specific Honshu Boshin Wakizashi in question, I cannot provide a definitive confirmation of its construction. It's always advisable to consult the product description, specifications, or contact the manufacturer or retailer directly for precise information about the construction and design details of a specific sword model like the Honshu Boshin Wakizashi.