1957 Press Photo Laboratory of AC Spark Plug Division, General Motors
This is an original press photo. In this laboratory of the AC Spark Plug division, General Motors Corp., inertial guidance systems are made for the Thor intermediate range ballistics missile. Workers wear hospital clean gowns and caps in sealed rooms with
PHOTO FRONT
![Image1](https://kyozoufs.blob.core.windows.net/filestoragecs4/Pictures/_10/9786/9785856.jpg)
PHOTO BACK
Historic Images Part Number: mjx28528