The legal element of concealment is "hidden" rather than rather than "can't see". § 941.23 annotation,
A handgun on the seat of a car that was indiscernible from ordinary observation by a person outside, and within the immediate vicinity, of the vehicle was hidden from view for purposes of determining whether the gun was a concealed weapon under this section. State v. Walls, 190 Wis. 2d 65, 526 N.W.2d 765 (Ct. App. 1994).