Vhf Omnidirectional Radio Range Equipment

Omnidirectional Radio Range - Equipment and Utilization, Collins Radio Company, 20 page softcover.  Not dated, but I am pretty sure this is late 1940's, when VHF frequency was deployed.  Item measures 8" x 5.5" and is in Good Condition.  Stains on the bottom of the booklet can be seen in the photos.  Otherwise, covers reflect moderate usage.  Pages all intact.

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