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Sotheby’s, Oct. 20: Euclid. Praeclarissimus Liber Elementorum in Artem Geometrie, Venice, Ratdolt, 25 May 1482, first edition of the first substantial mathematical work to appear in print, Durazzo copy.
Sotheby’s, Oct. 20: Galilei, Galileo. Sidereus nuncius …, Venice, 1610, first edition of the foundation of modern astronomy.
Sotheby’s, Oct. 20: Kepler, Johannes. Astronomia nova aitiologitos …, Prague or Heidelberg, 1609, first edition, contemporary vellum, the Chasles copy.
Sotheby’s, Oct. 20: Cellarius, Andreas. Harmonia macrocosmica seu atlas universalis et novus ..., Amsterdam, Jan Jansson, 1661, brilliantly handcolored.
Bonhams, Now thru Oct. 14: The "Hatfield" Apple-1 Computer in working condition, signed by Steve Wozniak with a letter signed by Steve Jobs. Estimate: $500,000-800,000
Bonhams, Now thru Oct. 14: REICHARDT, JASIA; curator. Cybernetic Serendipity: The computer and the Arts. Portfolio and Catalogue. Estimate: $5,000-8,000
Bonhams, Now thru Oct. 14: An Apple Lisa 1 Microcomputer. Estimate: $50,000-70,000
Bonhams, Now thru Oct. 14: A rare Apple Paladin "All-In-One" computer prototype. Estimate: $40,000-60,000
Bonhams, Now thru Oct. 14: 30th Anniversary "White OC" Edition Asus ROG Nvidia Astral Gegorce RTX 5090 signed by Jensen Huang. Estimate: $10,000-15,000
Bonhams, Now thru Oct. 14: A clear plastic prototype Apple Macintosh Portable. Estimate: $10,000-15,000
Bonhams, Now thru Oct. 14: An Apple Jolly Roger pirate flag. Estimate: $4,000-6,000
Bonhams, Now thru Oct. 14: An Apple Newton messagepad engineering development notebook. Estimate: $4,000-6,000
Bonhams, Now thru Oct. 14: A rare 1839 Jacquard-woven silk portrait of Joseph-Marie Jacquard. Estimate: $4,000-6,000
Bonhams, Now thru Oct. 14: A clear plastic prototype Apple Macintosh Powerbook Duo dock with an Apple Powerbook Duo 280. Estimate: $3,000-4,000
Bonhams, Now thru Oct. 14: A clear plastic prototype Macintosh 'Apollo' Classic II. Estimate: $3,000-5,000
Bonhams, Now thru Oct. 14: WEIZENBAUM. Computer Power and Human Reason. 1976. Estimate: $1,500-2,500
Bonhams, Now thru Oct. 14: An Apple Newton Messagepad with marketing display. Estimate: $1,000 - 1,500