Rare Book Monthly

Articles - May - 2005 Issue

Book Valuation Gets a Place at the Table

Money1

AE Current Value converts old prices into today's values


By Bruce McKinney

I've seen the future and can report it's exciting. Well, this isn't exactly Martin Luther King saying "I've seen the promised land" but it is part of the future of book valuation nevertheless and it is easy, fast and thought provoking. This month we introduce automated current pricing in the AED. For those who have wondered how or why a 1923 auction record is relevant to book valuation today I have only one word to say, HELLO.

For every book that makes the front page of the New York Times as "the long lost copy of ...." that is thought to be worth millions there are in fact millions of books that are interesting but whose values are much harder to understand. For all the books that don't make it to the front page of the Times there is now AE's Adjusted Current Valuation.

Wright Howes, the Chicago bookman, successfully created a flexible grading system 51 years ago and applied it to 10,520 titles in the Americana field in his book collector's guide: Howes' USiana. The beauty of his system was that his valuations were relative and so remained useful even as valuations changed. His book could not account for change in relative valuation but such changes became meaningful only over decades.

This month, in the AED, it now becomes possible to search for specific titles and editions and to select records that simply by selecting GET CURRENT ESTIMATE, immediately adjust all selected priced records to current value, and then average them for a composite current valuation, a generally better indicator of value than any single record. Then, if any records seem inappropriately high or low we provide links to each underlying record and the option to delete such records from the group. You can then recalculate composite value a second time.

This is not going to tell you what your book is precisely worth but it is going to give you a reasonable idea of its value. About 80% of all books will fall within 15% of the median prices. For books at both extremes the estimates will be less accurate but nevertheless helpful. Most people want to know if their book is valuable. This will tell you that.

Rare Book Monthly

  • <b>19th Century Shop:</b> Charles Darwin on sexuality and the transmission of hereditary characteristics: Autograph Letter Signed to Lawson Tait. Down, 17 January [1877].
    <b>19th Century Shop:</b> MILTON, JOHN. <i>Paradise Lost. A Poem written in ten books.</i> London: 1667. A very rare example with the contemporary binding untouched and with a 1667 title page.
    <b>19th Century Shop:</b> Hamilton secures the ratification of the Constitution: <i>The Debates and Proceedings of the Convention of the State of New-York, assembled at Poughkeespsie, on the 17th June, 1788.</i>
    <b>19th Century Shop:</b> The social contract “Man is born free, and everywhere he is in chains”: ROUSSEAU, JEAN-JACQUES. <i>Principes du Droit Politique [Du Contract Social]</i>. Amsterdam: Michel Rey, 1762
    <b>19th Century Shop:</b> “The first English textbook on geometrical land-measurement and surveying”: BENESE, RICHARD. <i>This Boke Sheweth the Maner of Measurynge All Maner of Lande…</i>
  • <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b> Caius Julius Hyginus, <i>Poeticon Astronomicon,</i> first illustrated edition, Venice, 1482. $15,000 to $20,000.
    <b>Swann Auction Galleries Mar 8:</b> Giovanni Botero, <i>Le Relationi Universali... divise in Sette Parti</i>, Venice, 1618. $3,000 to $5,000.
    <b>Swann Auction Galleries Mar 8:</b> <i>L'Escole des Filles</i>, likely third edition of the first work of pornographic fiction in French, 1676. $8,000 to $12,000.
    <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b> Illuminated Book of Hours in Latin on vellum, Flanders, early 16th century. $6,000 to $9,000.
    <b>Swann Auction Galleries Mar 8:</b> Johannes Regiomontanus, <i>Calendarium,</i> Venice, 1485. $8,000 to $12,000.
    <b>Swann Auction Galleries Mar 8:</b> Pedro de Medina, <i>Libro d[e] gra[n]dezas y cosas memorables de España,</i> Alcalá de Henares, 1566. $3,000 to $5,000.
    <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b><br>Luis de Lucena, <i>Arte de Ajedres,</i> Salamanca, circa 1496-97. $10,000 to $15,000.
    <b>Swann Auction Galleries Mar 8:</b> Andrés Serrano, <i>Los Siete Principes de los Ángeles, válidos de Rey del Cielo,</i> Spain, 1707. $800 to $1,200.
    <b>Swann Auction Galleries Mar 8:</b> Johannes de Sacrobosco, <i>Sphaera mundi,</i> first illustrated edition, Venice, 1478. $15,000 to $20,000.
  • <b>Bonhams, Feb. 11:</b> A Rare 3-rotor German Enigma I Enciphering Machine. $70,000 to $90,000
    <b>Bonhams, Feb. 11:</b> Important collection of correspondence between Werner Heisenberg and Bruno Rossi. $40,000 to $60,000
    <b>Bonhams, Feb. 11:</b> Walt Whitman Autograph manuscript containing his thoughts on death. $20,000 to $30,000
    <b>Bonhams, Feb. 11:</b> David Roberts. <i>Holy Land</i>. Six volumes. 1842-1849. First edition. $15,000 to $25,000
    <b>Bonhams, Feb. 11:</b> Extensive collection of Ray Bradbury's primary works, most signed or inscribed. $15,000 to $20,000
    <b>Bonhams, Feb. 11:</b> Peter Force. Declaration of Independence. $12,000 to $18,000
    <b>Bonhams, Feb. 11:</b> Steinbeck. <i>Grapes of Wrath</i>. A fine copy of the first edition. $10,000 to $15,000
    <b>Bonhams, Feb. 11:</b> Lewis & Clark. <i>Travels to the Source of the Missouri River</i>... First English edition, extra-illustrated. 1814. $10,000 to 15,000
    <b>Bonhams, Feb. 11:</b> Manuscript document signed by Nuno de Guzman relating to Hernan Cortes, 1528. $8,000 to $12,000
    <b>Bonhams, Feb. 11:</b> “Nos los inquisidores..." The first book in English printed West of the Mississippi. [1787]. $5,000 to $8,000.

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