How to Choose a Civil Defense Radiological Instrument: Geiger Counters & Dosimeters (Dr. "B"s Radiological Series, Band 1) : Brocato, Dr. Charles S.: Amazon.de: Bücher
Steven Janes - Civil Defense Geiger-Counter
Civil Defense CD V-715 Radiation survey Meter (geiger counter?) - YouTube
What's inside a 1960s American Civil Defense Geiger Counter — Steemit
Bought this 1963 Civil Defense Geiger Counter at a Garage Sale for $20. : r/mildlyinteresting