This is the early style rear view mirror which was a usual view with Mk. V airframes. This mirror could also be seen on many Mk. IXs before the improved and more aerodynamic rounded type became the production standard for this mark.
The Aerospace Maintenance and Regeneration Group (AMARG), often called The Boneyard, is a United States Air Force aircraft and missile storage and maintenance facility in Tucson, Arizona, located on Davis-Monthan Air Force Base.
The very bottom of the cockpit underneath the pilot’s seat. This is the inner mount of the orange-coloured navigational light positioned at the lower centreline of the fuselage between the radiator and the oil cooler.