Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Frank K. Signaigo {name misspelled on 1 ltr}; C. J. Silvernail; Dr. Sinkar {re Saha}; Charlotte Moore Sitterly; Arne Slettebak; Charles H. Smiley; Bettie Smith; Harlan J. Smith {incl ltr BJBok to ISB; ltr AJDeutsch to HJS}]
Bowen
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Additional Formats
[Carl Seyfert, Jr.; Evan Shaffer; Charles D. Shane {incl c.ltr CDS to LGoldberg; ltr CDS to MLHumason}; Harlow Shapley; Robert P. Sharp; Anatol J. Shneiderov; Chester J. Silvernail {Optical Specialties}; Andre C. Simonpietri {c.ltr AJDeutsch to ACS}; George Sisson {Grubb parsons}; Charlotte M. Sitterly]
Bowen
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Additional Formats
[John D. Schopp; D. W. Sciama; Lewis L. Scott; Howard S. Seifert {Space Technology Laboratories}; J. L. Sersic {incl 2 ltrs Raul Luis Cardon to ISB; ltr ISB to RLCardon; folded; comment HCArp to ISB}; Carl Seyfert, Jr.; Alan Horace Shapley; Harlow Shapley; Fred Siegler; William M. Sinton {incl c.ltr HWBabcock to WMS}]
Bowen
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Additional Formats
[Arne Slettebak; James H. Smiley; Hadley W. Smith {crank --folded}; Hallett D. Smith; J. W. Smith {incl ltr Arthur F. Fischer to ISB; ltr ISB to AFFischer}; Société d'Études et de Construction d'Appareillages Scientifiques et Industriels; Doris E. Spears; memo "Spectroscopic Time Requirements"; C. M. Stearns; F. J. M. Stratton; John Strong; P. Swings; Theodore M. Switz; Mrs. D. W. Sylvia; W. D. Syverson {crank}]
Bowen
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Additional Formats
[Eugene M. Shoemaker; Chester J. Silvernail; Charlotte M. Sitterly; Arne Slettebak; Alex G. Smith; Clifford E. Smith; Harlan J. Smith {c.ltr HJS to ARSandage}; Smithsonian Institution {Pieter Diamadopolous}; SIPEC {Società Italiana Produzioni Editoriali Culturali}; Southern California Industry-Education Council {Martin D. Brown}; Space Science {Benjamin Adelman}; Space Technology Laboratories, Inc; Hyron Spinrad]
Bowen
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Additional Formats
[Arne Slettebak; E. C. Slipher {incl c.ltr WABaum to ECS}; Michael S. Snowden; South African Embassy; F. M. Speed; H. S. Spigl; Jonathan M. Spivak; E. V. Stearns {Astronautical Sciences Review}; Cynthia Stephens {incl 2 ltrs ISB to JSchilt; 2 ltrs JSchilt to ISB}; C. B. Stephenson]
Bowen