ONE OF THE EARLIEST ILLUSTRATIONS OF A SURGICAL PROCEDURE. BARTHOLOMAEUS ANGLICUS. Van den proprieteyten der dinghen [De proprietatibus rerum]. ...

STIRLING EXPANDS NEWTON'S WORK ON CUBICS. STIRLING, JAMES. 1692-1770. Lineae tertii ordinis Neutonianae, sive illustratio tractatus D. Neutoni de ...

WILLIAM COLLIER OCTAGONAL BRASS INCLINING DIAL. English, 18th century, 2 3/4 x 2 1/16 x 1/2 inches (66 x 53 x 13 mm) when closed, octagonal dial w...

MORGAGNI, GIOVANNI BATTISTA. 1682-1771. The Seats and Causes of Diseases.... London: Printed for A. Millar and T. Cadell, 1769. 3 volumes. 4to (2...

MESMERISM. MESMER, FRANZ ANTON. 1734-1815. Contemporary manuscript treatment of Mesmer's Aphorisms, in French, including original commentary by a ...

A BLEULER BRASS CULPEPPER MODEL MICROSCOPE. Late 18th-early 19th century, on an integrated mahogany stand with drawer, in a fitted mahogany obelis...

BABBAGE ON HIS DIFFERENCE ENGINE. Autograph Letter Signed ('Charles Babbage'), an invitation to visit his difference engine at engineer Joseph Cle...

BABBAGE INVITATION TO TEA WITH ADA LOVELACE AND MICHAEL FARADAY. BABBAGE, CHARLES. 1791-1871. Autograph Letter Signed ('C. Babbage') to 'Mrs. List...

NATURAL HISTORY MUSEUM OF PHILADELPHIA. Seaman's Lyceum of Philadelphia. Philadelphia: William Brown, printer, 1836. 8vo (193 x 117 mm). 22 pp. O...

PRESENTATION COPIES OF FARADAY'S DISCOVERY OF LINES OF FORCE. FARADAY, MICHAEL. 1791-1867. 'Experimental Researches in Electricity (Eleventh [- Th...

A J. GILBERT BRASS MICROSCOPE. 19th c., on an integrated mahogany stand with drawer, in a fitted mahogany obelisk case, signed and inscribed 'J. G...

A JOHN B. DANCER BRASS MICROSCOPE. Mid-19th c., signed and inscribed 'J. B. Dancer / Optician, / Manchester' to the base, in a fitted mahogany box...

EDISON CIRCUIT DRAWING OF A TELEGRAPH. EDISON, THOMAS ALVA. 1847-1931. Pen-and-ink circuit design drawing for a telegraph, 204 x 132 mm, ink on p...

EARLY CALIFORNIA TELEPHONE DOCUMENTS. Autograph letter signed ('Jno. I. Sabin'), to J.B. Shannon, Collector of the Port [of] San Francisco, 'We re...

EARLY TELEPHONY AND TELEGRAMS. An album of manuscript notes, ideas, experiments, etc., approximately 300 pages (150 blank), folio (325 x 205 mm),...

PASTEUR HELPS HIS SISTER'S FAMILY. PASTEUR, LOUIS. 1822-1895. Autograph Letter Signed ('L. Pasteur'), to Edmond Bonnotte ('Cher Monsieur') making ...

GRANT 10-FIGURE CALCULATING MACHINE. Mechanical calculator, Lexington, MA: George Grant, 1890s, steel and brass, painted and partially nickel-plat...

A POWELL & LEALAND BRASS MICROSCOPE. Signed and inscribed 'POWELL & LEALAND / 170 / Euston Road / LONDON' to the arm and '1894' near adjustment sc...

MARIE CURIE ON SCIENCE. CURIE, MARIE. 1867-1934. Autograph Statement Signed ('M. Curie'), in French, on increasing public interest in scientific r...

THACHER CYLINDRICAL SLIDE RULE MODEL 4012. Thacher's Calculating Instrument, New York: Keuffel & Esser, 1925. Multi-faceted cylindrical slide rul...

IMPORTANT DE BROGLIE MANUSCRIPT ON WAVE MECHANICS. DE BROGLIE, LOUIS. 1892-1987. Autograph Scientific Manuscript Signed at the head ('Louis de Bro...

SCHRODINGER AT THE DAWN OF WAVE MECHANICS. SCHRÖDINGER, ERWIN. 1887-1961. Typed Letter Signed ('E. Schrödinger') to Wilhelm Wien ('Hochverehrter H...

RICHARD FEYNMAN'S ANNOTATED COPY, WITH TWO EARLY FEYNMAN AUTOGRAPH MANUSCRIPTS. UREY, HAROLD CLAYTON; and ARTHUR EDWARD RUARK. Atoms, Molecules, a...

THE FOUNDATIONS OF MODERN COMPUTING. TURING, ALAN MATHISON. 1912-1954. 'On Computable Numbers, with an Application to the Entscheidungsproblem,' a...

SHANNON CREATES THE FRAMEWORK FOR MODERN COMPUTING. SHANNON, CLAUDE. 1916-2001. 'Symbolic Analysis of Relay and Switching Circuits,' appearing in:...

RARE AUTHOR'S PRESENTATION OFFPRINT, INSCRIBED. EINSTEIN, ALBERT. 1879-1955. 'Geometrie und Erfahrung.' Offprint from: Sitzungsberichte der Preus...

FINE OIL PORTRAIT OF ALBERT EINSTEIN BY EUGEN SPIRO. EINSTEIN, ALBERT. 1879-1955. SPIRO, EUGEN. 1874-1972. Original large portrait of Albert Einst...

PENICILLIN MOLD MEDALLION INSCRIBED BY ALEXANDER FLEMING. FLEMING, ALEXANDER. 1881-1955. Specimen of original penicillin mold on blotting paper, m...

J. ROBERT OPPENHEIMER ON THE MANHATTAN PROJECT. OPPENHEIMER, J. ROBERT. 1904-1967. Letter Signed ('J R Oppenheimer') to George G. Little, 1p, 4to...

THE AMERICAN CIPHER MACHINE OF WWII. A Hagelin M-209-B Cipher Machine, American, c. 1945. Portable pin-and-lug cipher machine, in olive green cri...

'BLUE BOX' PHONE HACKING DEVICE. Blue Box, c. 1972. Populated circuit board, 51 x 72 mm, housed in plastic composite box, 104 x 175 x 38 mm, with ...

APPLE COMPUTER TECHNICAL SERVICE SCHEMATICS. Apple Service: Level II Technical Reference #204-1011 (volumes I and II). [Cupertino, CA]: Apple Comp...

APPLE 'TWIGGY' MACINTOSH PROTOTYPE USED IN THE DEVELOPMENT OF DEMONSTRATION SOFTWARE. Macintosh Personal Computer, Apple Computers Inc, Cupertino,...

APPLE COMPUTER TECHNICAL SERVICE SCHEMATICS. Apple Service: Level II Technical Reference #204-1011. Cupertino: 1983-1984. 310 x 445 mm. Volume I...

RARE APPLE COMPUTER PROTOTYPE TEDDY BEAR. Apple Computer plush teddy bear, six-colour Apple logo to chest and arms, Clara Toys from Millstreet Tow...

APPLE MACINTOSH FIRST GENERATION ADVERTISING BANNER. APPLE COMPUTER, INC. Macintosh / Hello. White Tyvek ® banner printed in colors, [Cupertino, C...

APPLE LISA 2/10-MACINTOSH XL IN ORIGINAL BOX. Microcomputer, Cupertino, CA, 1985, 475 x 350 x 372 mm, Model A6S0200, serial number A3321201, with ...

APPLE DESKTOP PUBLISHING POSTER. With Apple Desktop Publishing anyone can draw on our experience. Printed poster in colors, laid down on board, [C...

APPLE'S POWER MACINTOSH PROCESSORS CHALLENGE INTEL. Power Macintosh Challenge. Vinyl banner with applied vinyl letters and logo in colors, [Cupert...

PICASSO APPLE ADVERTISING BANNER. APPLE COMPUTER, INC. Think Different: Picasso. Printed vinyl banner, [Cupertino, CA: c. 1997/1998], 1,550 x 700 ...

APPLE IMAC BANNER. APPLE COMPUTER, INC. iMac / Think Different. Double-sided vinyl banner, printed in colors, [Cupertino, CA: Apple Computers, c. ...

APPLE iPHONE 1 SEALED IN ORIGINAL BOX. Apple iPhone 1 8GB smartphone, 2007, sealed in original box since its production with original shrink-wrapp...