- Pahrump, Nevada, United States
- May 25th
Bicron / ThermoElectron / Eberline Company Model Surveyor M Alpha, Beta, Gamma, X-Ray, Radiation Detection and Survey Instrument, Serial #1113B with Model PGM, 2 inch diameter, pancake probe, Serial #1-343B. Instrument operates on 9 volt battery. Has front panel audio on-off switch, front panel fast-slow response switch, and high voltage adjust 0- 2KV.