Bulgarian Interior Min Appears to Be 'Agent' of US Secret Service - Novinite.com - Sofia News Agency
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Bulgaria.Large collection of Bulgarian Committee for State Security medals, badges & Citations, etc. to same person.Circa.1970's/80's – Relic Militaria – Military Antiques and Memorabilia
badge information page - Viewing Badge Bulgarian Military Intelligence Service Desk Medal
CEEOL - Article Detail
The Bulgarian Umbrella: The Soviet Direction and Operations of the Bulgarian Secret Service in Europe : Kostov, Vladimir, Reynolds, Ben: Amazon.it: Libri
Georgi Markov – The Umbrella Assassin | Belfast Child
Komitet za dăržavna sigurnost - Wikipedia
Bulgarian secret services take leave until September – Euractiv
Bulgaria Busts Forgers who Advertized a Stallone Passport Replica
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
Bulgarian secret services contradict on Russian war's external impact – Euractiv
Bulgaria, US Secret Service in counterfeit money raid Bulgaria Police Ukraine Sofia US Secret Service | The Independent
Secret Service: Bulgaria No Longer Threat to US Dollar - Novinite.com - Sofia News Agency
Bulgarian Law Enforcement Bust Counterfeit Currency Plant | Flickr
Bulgarian Umbrella: Soviet Direction and Operation of the Bulgarian Secret Service in Europe by Vladimir Kostov; Translator-B. Reynolds - Hardcover - 1988-07 - from Ergodebooks (SKU: SONG0710812299)
