MG34 anti-aircraft spider sight 'WaA4'

A very nice AA spider sight for the MG34, which retains much of the factory bluing and has never been refinished. The base is clearly marked 'WaA4' indicating production by Gustloff-Werke, Waffenwerke Suhl who also manufactured the MG34s themselves, under various secret ordnance codes.  
 
One of these parts would have been carried by every MG34 gunner, and was held within the belt-mounted tool pouch. A textbook original example!