Apo Reef Lighthouse, Philippine Islands. In:
"Lighthouses and Lightships of the United States" by George R. Putnam, p. 174,
1917. Houghton Mifflin and Company, Boston. Library Call No. 527.7 P98.
Image ID: line2482, NOAA's America's Coastlines Collection Location: Philippine Islands, Apo Reef Photographer: Archival Photo by Mr. Steve Nicklas, NOS/NGS/RSD
