+- The Soviet Military Awards Page Forum (https://soviet-awards.com/forum)
+-- Forum: Soviet Awards Forums (https://soviet-awards.com/forum/Forum-Soviet-Awards-Forums)
+--- Forum: Union Of Soviet Socialist Republics (https://soviet-awards.com/forum/Forum-Union-Of-Soviet-Socialist-Republics)
+---- Forum: Soviet Badges And Ministerial Awards (https://soviet-awards.com/forum/Forum-Soviet-Badges-And-Ministerial-Awards)
+----- Forum: People's Commissariats/Ministries Of Industry/Production/Construction (https://soviet-awards.com/forum/Forum-People-s-Commissariats-Ministries-Of-Industry-Production-Construction)
+----- Thread: Leningrad Institute Of Aviation Instrument Construction Badge (/Thread-Leningrad-Institute-Of-Aviation-Instrument-Construction-Badge)
Leningrad Institute Of Aviation Instrument Construction Badge - KDVR - 01-25-2015
who knows more about it. thank you ;-)
Leningrad Institute Of Aviation Instrument Construction Badge - Al-muell - 01-26-2015
My guess (not suported by anything) from the letters:
Flight institute of the Air Industry.
Leningrad Institute Of Aviation Instrument Construction Badge - Pobeda45 - 01-30-2015
Yup, it's a badge to a graduate of the Leningrad Institute of Aviation Instrument Building (Ленинградский институт авиационного приборостроения). It still exists, with the official name Saint-Petersburg State University of Aerospace Instrumentation.