Announcement of the opening of the San Juan Geophysical Observatory. This was
a new observatory as the C&GS had operated an observatory in Puerto Rico
since 1903.
Image ID: cgs02251, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1965 Credit: Family of Captain Miller J. Tonkel, NOAA Corps
Category: Coast and Geodetic Survey/Geophysics Geomagnetism/
