Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Incl c.ltr OS to FZwicky; c.ltr RCGibbs to OS; c.ltr OS to AAMikhailov; c.ltr OS to HSpencer-Jones; ltr OS to WSAdams; c.ltr OS to MRees; c.ltr OS to SAMitchell; c.ltr OS to BJBok]
Bowen
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Additional Formats
[Incl c.ltr OS to DWBronk; c.ltr Armin J. Deutsch to OS; c.ltr Wendell M. Stanley to OS; c.ltr JHVanVleck to OS]
Bowen
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Additional Formats
[Incl c.ltr OS to Wallace W. Atwood, Jr. {see NAS 1953 above}; c.ltr OCWilson to OS]
Bowen
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Additional Formats
[Incl c.2 ltrs OS to OCWilson; c.ltr DHMenzel to OS]
Bowen
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Additional Formats
[Incl c.ltr DHMenzel to OS; c.ltr OCWilson to Jorge Sahade]
Bowen
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Manuscripts
{incl c.ltr OS ? J. C. Duncan; c.ltr OS ? Rollin D. Hemens; c.ltr RDH ? OS; c.ltr OS ? P. W. Merrill; c.ltr OS ? Jahn & Ollier Engraving Co.}
mssSeares papers