Sono-radio-buoy deployed in the Aleutians for RAR work.
Buoy deployed from the PIONEER
Image ID: theb2267, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Islands of the Four Mountains, Aleutian Islands
Photo Date: 1940
Credit: Captain Harry D. Reed, C&GS
Category: Charting/Navigation/Electronic/Radio-Acoustic Ranging/
• High Resolution Photo Available