Rare Book Monthly

Articles - August - 2007 Issue

AE Services Part 3: Current Price Estimator

Avest

AE Price Estimator shows upward value trend for a Gutenberg Bible leaf.


By Michael Stillman

This month we look at one of the Americana Exchange's most useful tools, its current price estimator. It updates values of prices in the 1.6 million-plus AE Database (AED) of book records to their current estimated value. It helps you make sense out of old priced records, those which go back as far as 1914. This tool comes with all subscriptions to the AED, which contains over 1.6 million book records from auctions, catalogues, and bibliographies, most of which include prices.

Here is how it works. The AE price estimator takes a price from any given year and updates it to 2007 values, based on typical increases in book values since that year. For example, the average book value has increased fivefold since 1980, fifty times since 1936. So, the current price estimator will take a book that sold for $2 at auction in 1936 and provide a current estimate of around $100. If a book has sold multiple times since 1914, it will provide a current estimate for each year's price, and even average out all of those estimates for a cumulative current estimate for all sales combined.

How accurate is this? We certainly would not claim these are definitive values. The rate of increase is based on what we have seen across the broad spectrum of records within the AED. Therefore, they represent the overall trend in pricing. However, not every book has appreciated at the average rate. In general, the rarest and most historically important texts have appreciated at an above average rate. On the other hand, some fiction and poetry that was popular years ago, but has since fallen out of favor, has stagnated while the world around it rushed forward. What these numbers most clearly do is convert the price the book sold for years ago into today's book dollars. On average, that is the same as current value, but can vary for individual items.

Fortunately, most books appear in the AED multiple times, providing several looks at its value. The averaging feature is very helpful here. Also, looking at price trends based on current estimates is very useful for understanding value. If more recent sales translate to higher current estimates than older ones, this is a good sign that the book is appreciating at a higher than normal rate. It may be a better investment than a book trending in the other direction. Naturally, more recent sales are likely to provide estimates closer to current value than ones from the distant past. Nevertheless, this tool will place even those oldest records into sufficient context to be meaningful.

Obtaining pricing data is one of the most difficult challenges for sellers and buyers alike, yet it is undoubtedly the most important item of practical information each needs. Few collectors can afford to seriously overpay, while sellers don't want to undercharge or price so high they cannot sell. Many people look to online listing sites such as Abebooks for pricing information. The problem with this is that Abe values are asking prices, not selling ones. Often, someone will post a price pulled out of thin air, and then others will follow like lemmings with similar figures. Those books can stay unsold seemingly forever, all sellers locked in to the first posted, unrealistic price. In other situations, prices for similar items can be all over the place, one seller wanting $10, another $100. What is this book worth? Who knows? None of these represent actual sales, and it is not clear which, if any, prices were posted by knowledgeable sellers versus rank amateurs.

Rare Book Monthly

  • <b>Old World Auctions (Feb 3-17):</b><br>Lot 14. Blaeu,<i>Nova Totius Terrarum Orbis Geographica ac Hydrographica Tabula</i>, 1635. Est. $14000-$16000
    <b>Old World Auctions (Feb 3-17):</b><br>Lot 305. Arrowsmith, <i>Texas: The Rise, Progress, and Prospects of the Republic of Texas</i>, 1841. Est. $18000-$20000
    <b>Old World Auctions (Feb 3-17):</b><br>Lot 256. Thackara, <i>Plan of the City<br>of Washington in the Territory of Columbia</i>, 1792. Est. $13000-$16000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 188. Browne/Senex, A New<br>Map of Virginia Mary-land, 1719. <br>Est. $5500-$6500
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 47. Cellarius, <i>Scenographia Systematis Copernicani</i>, 1708.<br>Est. $2400-$3000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 6. Ortelius, <i>Typus Orbis Terrarum</i>, 1571. Est. $7000-$8500
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 413. De Medina, <i>Mundo Novo,</i> 1554. Est. $7000-$9000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 37. Jansson, <i>Histoire des Grands Chemins de l'Empire Romain</i>, 1736. Est. $3000-$3750
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 798. Le Rouge, <i>Atlas Nouveau Portatif a l'Usage des Militaires</i>, 1748. Est. $2400-$3000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 60. Munster, <i>Tabula Novarum Insularum</i>, 1559. Est. $5500-$7000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 122. Morden, <i>A New Map of the English Empire in America</i>, 1695. <br>Est. $14000-$16000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 291. J.J. Stoner, Niagara-Falls, <br>N.Y., 1882. Est. $1600-$1900
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 797. Sanson, <i>Die Gantze Erd-Kugel</i> ... Europa, Asia, Africa und America, 1679. Est. $8000-$10000
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 799. Lotter/Lobeck, Atlas Geographicus Portatilis, 1760.<br>Est. $1600-$1900
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 808. Railroad Companies, [<i>Manuscript Railroad Atlas</i>], 1890.<br>Est. $1000-$1500
    <b>Old World Auctions (Feb 3-17):</b> <br>Lot 800. Pinkerton, <i>A Modern Atlas</i>, 1815. Est. $8000-$10000
  • <b>19th Century Shop.</b> LINCOLN, ABRAHAM. <i>A superb collection of manuscripts signed by Lincoln and relics related to Lincoln’s death</i>. Washington, 1864-1865
    <b>19th Century Shop.</b> Rare Relic of the Underground Railroad (1857). <i>$500 Reward Ran away ...</i>
    <b>19th Century Shop.</b> CARTER, SUSANNAH. <i>The Frugal Housewife,</i> (1772) the second American cookbook, plates by Paul Revere.
    <b>19th Century Shop.</b> SCHIRRA, WALTER M.. Icon of the American Space Program. <i>A Complete Set of Schirra’s Flight Log Books (1947-69).</i>
    <b>19th Century Shop.</b> A fine pair of daguerreotypes, one a black nurse holding a white baby, the other the white parents. Maryland, c. 1853.
    <b>19th Century Shop.</b> The Internet. (COMPUTERS.) CERF, VINTON & KAHN, ROBERT. <i>"A Protocol for Packet Network Intercommunication" in IEEE Transactions on Communications.</i>
  • <b>Swann Auction Galleries Feb 25:<br>Art & Storytelling: Photographs<br>& Photobooks</b>
    <b>Swann Auction Galleries Feb 25:</b> Marcus A. Root, "<i>General Tom Thumb</i>" with parents, daguerreotype, circa 1846. $30,000 to $40,000.
    <b>Swann Auction Galleries Feb 25:</b> William Saunders, <i>Sketches of Chinese Life and Character</i>, album with 50 hand-colored photographs, 1871-72. $25,000 to $35,000.
    <b>Swann Auction Galleries Feb 25:</b> Wilson A. Bentley, album of 25 microphotographs from glass<br>plate negatives, 1888-1927.<br>$20,000 to $30,000.
    <b>Swann Auction Galleries Feb 25:<br>Art & Storytelling: Photographs<br>& Photobooks</b>
    <b>Swann Auction Galleries Feb 25:</b> Hilla & Bernhard Becher, <i>Anonyme Skulpturen, Eine Typologie technischer Bauten</i>, first edition inscribed, Düsseldorf, 1970. $1,200 to $1,800.
    <b>Swann Auction Galleries Feb 25:</b> Edward Ruscha, four seminal artist's books in original dust jackets.<br>$1,500 to $2,500.
    <b>Swann Auction Galleries Feb 25:</b> Typological set of more than 100 photographs of WWII fighter planes, 1942-45. $400 to $600.
    <b>Swann Auction Galleries Feb 25:</b><br>Roy DeCarava and Langston Hughes, <i>The Sweet Flypaper of Life</i>, first edition signed by authors, New York, 1955. $500 to $750.
  • <b>Bonhams Fine Books and Manuscripts, February 14th, 2016.</b>
    <b>Bonhams Feb 14th:</b> Lot 9. HIERONYMUS. C.340-420. <i>Epistolae. WITH: Lupus de Oliveto. Regula Monachorum ...</i> US$ 20,000-30,000.
    <b>Bonhams Feb 14th:</b> Lot 47. FROST, A.B. 1858-1921. Shooting Pictures. New York: Charles Scribner's Sons.<br>US$ 10,000-15,000.
    <b>Bonhams Feb 14th:</b> Lot 53. PICASSO, PABLO, RAOUL HAUSMANN, et al. ILIAZD, ed. Poesie de mots inconnus. 1949. US$ 8,000-12,000.
    <b>Bonhams Feb 14th:</b> Lot 64. BRIGGS, HENRY. 1561-1630. <i>The North Part of America</i>. [London: 1625]. Engraved by R. Elstracke. US$ 8,000-12,000.
    <b>Bonhams Feb 14th:</b> Lot 79. COPERNICUS, NICOLAUS. De revolutionibus orbium coelestium. 1566. US$ 80,000-120,000.
    <b>Bonhams Feb 14th:</b> Lot 80. DARWIN, CHARLES. On the Origin of Species by Means of Natural Selection, or the Preservation of ... US$ 70,000-90,000.
    <b>Bonhams Feb 14th:</b> Lot 87. NEWTON, ISAAC, SIR. Autograph Manuscript in Latin and English [n.p., early 1670s}. US$ 100,000-150,000
    <b>Bonhams Feb 14th:</b> Lot 93. Dr. Kary Mullis' 1993 Nobel Prize in Chemistry, awarded to him for the invention of the Polymerase Chain Reaction. US$ 450,000-550,000.
    <b>Bonhams Feb 14th:</b> Lot 96.<br>CLEMENS, SAMUEL. Autograph Manuscript, nearly complete chapter 30 of <i>A Tramp Abroad</i>, c.1879.<br>US$ 20,000-30,000.
    <b>Bonhams Feb 14th:</b> Lot 105. GOLF. [MATHISON, THOMAS. d.1754.]<br><i>The Goff</i>. An Heroi-Comical Poem.<br>US$ 40,000-60,000.
    <b>Bonhams Feb 14th:</b> Lot 113. JOYCE, JAMES. 1882-1941. <i>Ulysses</i>. First Edition, Presentation Copy, Signed and Inscribed by Joyce on the half-title. US$ 40,000-60,000.
    <b>Bonhams Feb 14th:</b> Lot 120. LONDON, JACK. Autograph Manuscript of the short story "Flush of Gold". US$ 40,000-60,000.
    <b>Bonhams Feb 14th:</b> Lot 135. STEINBECK, JOHN. Autograph Manuscript of an unpublished short story. US$ 35,000-45,000.
    <b>Bonhams Feb 14th:</b> Lot 149. GERONIMO. BARRETT, S.M., ed. Geronimo's Story of His Life. 1906. US$ 12,000-18,000.
    <b>Bonhams Feb 14th:</b> Lot 165.<br>ENOLA GAY. LEWIS, ROBERT A. An official pilot's log, 1942 to 1946.<br>US$ 50,000-80,000.

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