Bidspirit auction | US Navy Infrared Signaling Telescope

US Navy Infrared Signaling Telescope US/C-3 W/Case - Telescope is untested and we think it dates to the Vietnam era but may be from 1950s. Does take 2 D size batteries. Comes with one extra sun shade filter lens. Case in black vinyl with instructions on inside of lid and has carrying strap. Telescope is in very good condition - case shows age and wear.