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Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, Harvard coronagraph
Photograph, Harvard coronagraph
Photograph, Harvard coronagraph
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, New Guinea eclipse expedition
Photograph, Coronascope II-alpha
Photograph, Balloon recovery
Photograph, HAO anniversary party
Photograph, Spectrograph, camera and slit
Photograph, Sacramento Peak Observatory
Photograph, Coronascope II-alpha

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