1. [Polio Vaccine]

A Vast Archive Relating to the Development of the Polio Vaccine, With Glass Vial From Original Vaccine Run

2. Compton, Arthur Holly

The 1927 Nobel Prize in Physics Awarded to Arthur Holly Compton, for His Demonstration of the Particle Nature of Electromagnetic Radiation

3. [WWII German Kriegsmarine]

Original, Combat-used WWII Kriegsmarine Signalbuch, Berlin, 1940

4. Enigma I

A Fully Operational Enigma I in Original Condition, in Rare Green Panzerholz Case

5. Trinitite

A Trinitite Specimen Created by the Trinity Nuclear Test in Alamagordo, New Mexico on July 16, 1945

6. Feynman, Richard P.

Autograph Manuscript Signed Twice ("Richard Feynman"), Consisting of Poems, Drawings, and a Puzzle From a Young Richard Feynman

7. Feynman, Richard P.

Three Handwritten Poems by a Young Richard Feynman

8. [Feynman, Richard P.]

Collection of Richard Feynman's Academic Diploma & Records, Photo of Childhood Chemistry Lab, and Related Materials

9. [Feynman, Richard P.]

Documents Regarding the William Lowell Putnam Mathematical Competition, Pi Mu Epsilon Contest Certificate, etc.

10. Feynman, Melville

Autograph Letter Signed (“Dad”), to Lucille, Richard, and Joan Feynman, Written Facing Possibility of Death, 1938

11. Feynman, Richard P.

Autograph Letter Signed ("R.P. Feynman."), to His Mother Lucille Feynman, Announcing His First Solo Publication, 1939

12. [Feynman, Richard P.]

Collection of Academic Offer Letters Made to Feynman, From Princeton, Berkeley, and MIT

13. Feynman, Richard P.

Two Autograph Letters Signed (“R.P. Feynman”), to Lucille Feynman, Discussing Assisting His Advisor, John A. Wheeler

14. [Feynman, Richard P.]

Autograph Letter to Lucille Feynman, Describing His Work Schedule at Princeton

15. Feynman, Richard P.

Autograph Letter Signed (“RPF”) to Lucille Feynman, Regarding a Performance of Shakespeare's Othello

16. Feynman, Richard P.

Autograph Letter Signed (“R.P. Feynman”), to Lucille Feynman ("Mom"), Sending His Father a Long Division Puzzle

17. Feynman, Richard P.

Autograph Letter Signed (“RPF”), to Lucille Feynman, Recounting a Day in His Life at Princeton

18. Feynman, Richard P. and [Feynman, Lucille]

Correspondence between Richard Feynman and His Mother, Lucille Feynman, Regarding Marrying Arline Despite Her Illness, [1942]

19. Feynman, Richard P.

Autograph letter signed ("R.P.F.") to His Father Melville Feynman, Discussing Marrying Arline, [1942]

20. Feynman, Richard P.

Autograph Letter Signed (“RPF”), to Lucille Feynman, Recounting a Hiking Trip with His Los Alamos Colleagues

21. Feynman, Richard P.

Autograph Letter Signed ("R.P.F."), to Lucille Feynman, Discussing Pine Needle Tea as Scurvy Treatment

22. Feynman, Richard P.

Autograph Letter Signed (“Rich”), to Lucille Feynman, Telling His Mother Not to Give Out His Address at Los Alamos, [1943]

23. Feynman, Richard P.

Autograph Letter Signed (“R.P.F.”), to Lucille Feynman, Concerning the Inadequacies of Physicists as Lovers

24. Feynman, Richard P.

Autograph Letter Signed (“RPF”), to Lucille Feynman, Discussing His Talk at the Los Alamos Math Club

25. Feynman, Richard P.

Autograph Letter Signed (“RPF”), to Lucille Feynman, Describing Los Alamos and Its Surroundings

26. Feynman, Richard P.

Autograph Letter Signed ("R. P. Feynman.") to Lucille Feynman, Giving An Eyewitness Account of the Trinity Nuclear Test

27. Feynman, Richard P.

Autograph Letter Signed ("RP Feynman"), to Lucille Feynman, Discussing the Reaction to the Hiroshima Bombing at Los Alamos

28. Feynman, Richard P.

Autograph Letter Signed (“His Son Richard”), to Melville Feynman, Telling His Father How He Fostered His Love of Science

29. Feynman, Richard P.

Autograph Letter Signed ("R.P. Feynman" to top right), to the Draft Board, Telling Them Why He Should Not Be Drafted, [1946]

30. Feynman, Richard P.

Autograph Letter Signed (“Dick.”), Reassuring His Father of His Love for the Family

31. Feynman, Richard P.

Autograph Letter Signed (“RPF”), to His Sister Joan Feynman, Advising Her to Challenge Herself Academically

32. Feynman, Richard P.

A Remarkable Portrait by Richard Feynman of His Hero, Physicist Paul Dirac

33. [Feynman, Richard]

A Gold-bearing Rock From the Deepest Neutrino Lab in the World, Gifted to Richard Feynman by Frederick Reines — From One Nobel Laureate to Another

34. Feynman, Richard P.

“Surely You’re Joking, Mr. Feynman!” First Edition, First Printing, Signed and Inscribed by Feynman to His Cousin, White House Correspondent Frances Lewine

35. Feynman, Richard P.

QED: The Strange Theory of Light and Matter. First Edition, First Printing, Signed and Inscribed by Feynman to His Sister Joan

36. [Feynman, Richard]; Slater, John C. and Nathaniel H. Frank

Feynman's Undergraduate Copy of Slater & Frank's "Introduction to Theoretical Physics," Signed and With Notations by Him

37. [Feynman, Richard P.]; Pauling, Linus, and E. Bright Wilson, Jr.

Richard Feynman's Copy of Pauling & Wilson's "Introduction to Quantum Mechanics," Signed by Him

38. [Feynman, Richard]; Ruark, Arthur Edward and Harold Clayton Urey

Feynman's Undergraduate Copy of Ruark & Urey's "Atoms, Molecules, and Quanta"

39. [Feynman, Richard P.]; Slater, J.C.

Feynman's Copy of Slater's "Introduction to Chemical Physics", Signed by Feynman

40. Feynman, Richard P.

Dr. Joan Feynman's Copy of Her Brother, Richard Feynman's Doctoral Dissertation

41. Feynman, Richard

"The Character of Physical Law" (in Russian), Signed and Inscribed by Theoretical Physicist Kip Thorne to Richard Feynman

42. David (Didier) Roth

Roth Adder, ca. 1840-44

43. [Arithmometer]

A Thomas de Colmar Arithmometer (Arithmomètre), Model T1865A, ca. 1880

44. Staubli Freres & Cie

An Early 20th Century Jacquard Loom Punch Card Machine

45. Jobs, Steven

Letter from Jobs to Dave [Kominiak] Being a Sales Pitch for the Original Apple-1 Computers, 5 October 1976

46. Apple Computer, Inc.

Apple IIc Prototype With Carrying Case and Power Adapter

47. Apple Computer, Inc

Apple Macintosh Prototype Logic Board

48. Apple Computer, Inc.

Large Original Neon Apple Sign