Portrait Miniature of George and Martha Washington. American, 19th century

This American School painted ivory features a charming representation of the nation’s first president and first lady.

$2,200

Opticks: or a Treatise of the Reflections, Refractions, Inflexions and Colours of Light. London: William Innys, 1730

The Opticks and the Principia are the two pillars of Newton’s unparalleled scientific achievement. The Opticks has been called “an underpinning for the entire edifice of physics” (Scientific American).

$6,000

Autograph note signed to Robert Watt with original albumen print photograph. No place, July 16, 1874

Mark Twain the humorist. Samuel Clemens sent this delightful humorous note with the accompanying half- length standing portrait of the debonair author.

$18,000

Autograph manuscript on Ralph Waldo Emerson. No place, [ca. 1870s]

In this fine manuscript Whitman writes, “It is very plain after reading Emerson’s forenoon essays, and then those of his elder age that the latter are not the consecutive fruits or crowning results of the former.”

$28,000

The Penn Club requests the honour of your company at a reception to be given to Mr. Walt Whitman …. Philadelphia, March 27, [1880]

This is a rare invitation to an event held in Whitman’s honor at the prestigious private Penn Club in Philadelphia. Whitman, who wore a shabby coat festooned with dozens of pins, did not disappoint the curious.

$1,500

La Historia di Italia. Florence: Lorenzo Torrentino, 1561

FIRST EDITION. A “masterpiece of scientific history,” Guicciardini’s History of Italy was “undoubtedly the greatest historical work that had appeared since the beginning of the modern era. It remains the most solid monument of Italian reason in the 16th century, the final triumph of that Florentine school of philosophical historians which included Machiavelli …” (Britannica, 11th ed.).

$28,000