Collins 972Q-4 Portable VOR/ILS Test Set, S/N 152, Cage Code 13499. *Instrument Covers Are Removed, Interior Photographed, Covers Re-Installed, Unit Not Powered-Up (no battery) Photographed Again And Sealed (see pics).  NO OTHER TESTING IS DONE. Please contact me if you need more info....Sold As-Is For Parts Or Repair Only. *Free Shipping Contiguous USA Only*