Wwii German Luftwaffe Dead Reckoning Flight Computer

It is double sided nad has several moveable dials and gizmos. This is 100% guaranteed authentic, and was purchased at the max militaria show in pittsburgh from a very reputable dealer and luftwaffe expert. Winner to please add $5.00 for well packaged priority mail shipping in the united states. I accept checks, money orders, and paypal. Thanks for looking and please be sure to view my other ebay listings for more vintage military related items.