This is an original Early Boeing B-52 Stratofortress Bomber Pilot's Main Attitude Horizon Indicator gauge instrument. The instrument is in good  condition.  It is made by Lear and marked MM-1.  It is 5 1/2 x 5 1/2 x 11 inches. This attitude indicator was also used in the Early USN USMC F-8 Crusader Jet Fighter, The Boeing B-50 Bomber and the USN F-3D Demon Fighter Jet. This item is being sold as a collectable.  Payment must be received within 10 days of auction closing unless prior arrangements have been made. Buyer to pay shipping . AZ residents add 6.7% sales tax. If you have any questions please contact me via e-mail before bidding. Thank you for your interest in my auctions.