Sound-level meter, Type 1565-A made by General Radio Company, West Concord, MA. Purchased in 1971. Instruction manual reads"This instrument is capable of making sound-level measurements required under Part 50-204.10 "Occupational Noise Exposure", of U.S.C. Title 41 --" Public Contracts and Property Management Safety and Health Standards for Federal Supply Contracts" (Dept. of Labour). Ref: Federal Register, Vol 34, No. 96, May 20, 1969. Item includes the instrument, instruction manual, sound level calibrator (in its own nice leather case, packing slip, and leather carrying case with strap. It appears to be in virtually mint condition and works well. Sold as is, and sale is final due to residence relocating.
Item is located in Ottawa, Ontario, Canada. Contact seller for shipping estimate.