The provisions listed in Section 16590 do not apply to any instrument or device that is possessed by a federal, state, or local historical society, museum, or institutional collection that is open to the public if all of the following conditions are satisfied:
(a) The instrument or device is properly housed.
(b) The instrument or device is secured from unauthorized handling.
(c) If the instrument or device is a firearm, it is unloaded.
(Added by Stats. 2010, Ch. 711, Sec. 6. (SB 1080) Effective January 1, 2011. Operative January 1, 2012, by Sec. 10 of Ch. 711.)