Important Note:

I am not an expert on metrology or nuclear history! The information provided is my best guess based on research of the tags and model numbers. I cannot guarantee 100% accuracy regarding its history or technical specs. THIS IS BEING SOLD 100% AS IS—perfect for a collector of weird industrial history or a tinkerer who knows what they're looking at. You are highly encouraged to perform your own research. I am happy to provide any additional photos of this item you might need to help with your research.

This appears to be a high-precision Kaman Model G7-19 Calibrator used by Goodyear Aerospace for the Department of Energy (DOE). Though small, this thing is solid and heavy.

Based on the contract numbers on the tag, this likely dates back to the early 1980s. From what I’ve gathered, these were likely used for calibrating sensors in high-tech programs like the gas centrifuge projects of that era—making it a pretty unique piece of Cold War/Atomic history.

Item Details:

Manufacturer: Kaman (Goodyear Aerospace tag)

Era: Approximately 1981–1987

Weight: Approx. 8 lbs.

Build: Solid metal construction with a precision micrometer head.

Condition: Used industrial condition. The micrometer still [moves/turns], but I haven't tested it for accuracy.

Additional tags for visibility: Precision Metrology, Machinist Tool, Industrial Salvage, Scientific Instrument, Government Surplus, Aerospace Memorabilia, Vintage Laboratory, Department of Energy, Non-Contact Sensor, Eddy Current Testing, Inductive Displacement