pl23_theb2218.jpg
![A floating signal theb2218.jpg A floating signal](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb2218.jpg)
Description
A floating signal.Photograph in 1931 Hydrographic Manual
Credit
NOAA Central Library
Collection
Historic Coast & Geodetic Survey
Nautical Charting
Navigation
Floating Hydrographic Signals & Tautwire Machine
Keywords
Charting
Navigation
Visual Signals
Floating