You are purchasing the 6 Vintage flight instruments as shown in the pictures. They were purchased at ESTATE sale in KY from former US NAVY Pilot and collector. These are used, and untested sold as is. I wish I could provide more details concerning operation but I can say the needles freely move when gently tapped, the compass rotates in liquid and points to the actual directions of the map, one instrument , the smallest has a minor crack in plastic casing. I have included the IDENTS of Each:

1). HORIZON Meter: part # 52D21-1,  Piper altimatic pilot
2). Tachometer RPM indicator AN5530/ Cont # 45-9300AF, GE
3). ACCELEROMETER type B-6 , Mfg part # 3419=5a, Cont # AF3376
4). COMPASS MAGNECTIC Standby (2 PCS) , TYPE MS17938, MIL 56048, Airpath Inst CO. , NSM 6605 includes base
5). Fuel Pressure Indicator:
6): Exhaust TEMP Hanna AERO ( has minor crack casing and loose glass)

Free shipping in USA for purchase. I am a disabled veterans business and appreciate your patronage! Thanks for looking Again these are untested and for parts no returns please ask questions if you need more info!