FIRST EDITION of Lincoln's historic Cooper Union Address, delivered on February 27, 1860 at the Cooper Institute in Brooklyn, New York. The speech is largely credited to having launched Lincoln's Presidential bid. With silver print carte-de-visite of the Brady “Cooper Union” photograph.
Price: $9,500 .
FIRST EDITIONS IN RARE ORIGINAL WRAPPERS OF TWO LANDMARKS IN COMPUTER SCIENCE: Alonzo Church’s solution to the "Halting Problem", proving that an algorithm could not be created to solve every mathematical problem, and Emil Post’s description of a logic automaton very similar to Turing’s computational machine...
Price: $6,500 .