• Bonhams, Mar. 22 – Apr. 2: A RUTH BADER GINSBURG BEADED JUDICIAL COLLAR. $80,000 - $120,000
    Bonhams, Mar. 22 – Apr. 2: ONLY KNOWN COPY OF THE ONLY BOOK BY THE REMARKABLE EVE ADAMS. $8,000 - $12,000
    Bonhams, Mar. 22 – Apr. 2: A COMPLETE RUN OF VISIONAIRE MAGAZINE THROUGH 2010. $6,000 - $9,000
    Bonhams, Mar. 22 – Apr. 2: LAW REVIEW OFFPRINT SIGNED AND INSCRIBED BY RUTH BADER GINSBURG. $3,000 - $5,000
    Bonhams, Mar. 22 – Apr. 2: META REBNER'S WORKING SCRIPT OF THE LOVED ONE. $1,500 - $2,000
    Bonhams, Mar. 22 – Apr. 2: A KATHY GROVE PORTRAIT OF CYNDI LAUPER FOR THE FEBRUARY 1989 DETAILS COVER. $800 - $1,200
    Bonhams, Mar. 22 – Apr. 2: A PLASTIC COAT BY MILLIE DAVID FEATURED IN SOHO NEWS STYLE SECTION, FROM THE COLLECTION OF ANNIE FLANDERS. $500 - $700
    Bonhams, Mar. 22 – Apr. 2: A RUTH BADER GINSBURG JEWELRY BOX. $600 - $900
    Bonhams, Mar. 22 – Apr. 2: A SET OF JONI MITCHELL LYRICS FOR "IF I HAD A HEART." $2,000 - $3,000
  • 19th Century Shop
    Catalogue 198 just published
    19th Century Shop. Darwin and Wallace, first printing of the first paper on natural selection
    19th Century Shop. Shakespeare’s Poems, first collected edition
    19th Century Shop. Walt Whitman portrait inscribed with a Leaves of Grass poem
    19th Century Shop. Major Elizabeth Barrett Browning manuscript notebook
    19th Century Shop. Spock's Baby Book, original MS
    19th Century Shop. Cellarius, Harmonia Macrocosmica, the great celestial atlas
  • Potter & Potter Auctions
    How History Unfolds on Paper:
    Choice Selections from the Eric C. Caren Collection
    Part IX
    April 18, 2024
    Potter & Potter, Apr. 18: [RUTH, George Herman “Babe” (1895-1948)]. Signed photograph. Circa 1930s. 191 x 248 mm. $1,500 to $2,500.
    Potter & Potter, Apr. 18: HARRISON, Benjamin. Document signed (“Benj Harrison”) as governor of Virginia, certifying the service of Daniel Cumbo, a Black Revolutionary soldier. $6,000 to $9,000.
    Potter & Potter, Apr. 18: ONE OF THE FIRST PRINTED ANNOUNCEMENTS OF THE DECLARATION OF INDEPENDENCE. $4,000 to $6,000.
    Potter & Potter Auctions
    How History Unfolds on Paper:
    Choice Selections from the Eric C. Caren Collection
    Part IX
    April 18, 2024
    Potter & Potter, Apr. 18: FIRST PRINTING OF LINCOLN’S IMMORTAL GETTYSBURG ADDRESS. $4,000 to $6,000.
    Potter & Potter, Apr. 18: HIGHLY IMPORTANT MORMON ARCHIVE. ALLEY, George. Archive of 23 Autograph Letters Signed by Mormon Convert George Alley to His Brother Joseph Alley. $10,000 to $20,000.
    Potter & Potter, Apr. 18: [AVIATION]. [ARMSTRONG, Neil A.] Aviation Hall of Fame Gold Medal MS64 NGC, Awarded to Neil Armstrong in 1979. $2,000 to $3,000.
    Potter & Potter Auctions
    How History Unfolds on Paper:
    Choice Selections from the Eric C. Caren Collection
    Part IX
    April 18, 2024
    Potter & Potter, Apr. 18: NEWLY DISCOVERED FIRST PRINTING OF "WITH MALICE TOWARDS NONE... " FROM THE ONLY NEWSPAPER ACTUALLY ALLOWED TO PARTICIPATE IN LINCOLN’S SECOND INAUGURAL PROCESSION. $4,000 to $8,000.
    Potter & Potter, Apr. 18: THE MOST IMPORTANT GEORGE WASHINGTON DOCUMENT IN PRIVATE HANDS; GEORGE WASHINGTON’S COMMISSION AS COMMANDER IN CHIEF, 1775, ONE OF ONLY TWO ORIGINALS. $150,000 to $250,000.
    Potter & Potter, Apr. 18: A VERY RARE ACCOUNT OF BLACKBEARD’S DEATH AND ONE OF THE MOST IMPORTANT PIRATE ITEMS EXTANT. $3,000 to $5,000.
    Potter & Potter Auctions
    How History Unfolds on Paper:
    Choice Selections from the Eric C. Caren Collection
    Part IX
    April 18, 2024
    Potter & Potter, Apr. 18: EDISON, Thomas. Patent for Edison’s Improvements on the Electric-Light, No. 219,628. [Washington, D.C.: U.S. Patent Office], 16 September 1879. $2,000 to $3,000.
    Potter & Potter, Apr. 18: [VIETNAM WAR]. The original pen used by Secretary of State William P. Rogers to sign the Vietnam Peace Agreement, Paris, 27 January 1973. $10,000 to $15,000.
    Potter & Potter, Apr. 18: SONS OF LIBERTY FOUNDER COLONEL BARRÉ ANNOTATED TITLE-PAGE, “WHICH OUGHT TO ROUSE UP BRITISH ATTENTION”. $4,000 to $6,000.
  • Forum Auctions
    Books, Manuscripts and Works on Paper
    28th March 2024
    Forum Mar. 28: [Langland (William)]. The vision of Pierce Plowman, nowe the seconde time imprinted..., Roberte Crowley, 1550. £8,000 to £10,000.
    Forum Mar. 28: [Shakespeare (William)]. [Comedies, Histories, and Tragedies], second folio edition, [by Tho.Cotes, for Robert Allot], [1632]. £30,000 to £40,000.
    Forum Mar. 28: Bible, Czech Biblia Bohemica, first complete Bible printed in the Czech vernacular, Prague, August 1488. £30,000 to £40,000.
    Forum Auctions
    Books, Manuscripts and Works on Paper
    28th March 2024
    Forum Mar. 28: Shabthai Tzvi.- Collection of four printed and illustrated broadsides detailing the appearance, rise and fall of the false messiah, Shabthai Tzvi, Augsburg, 1666-67. £40,000 to £60,000.
    Forum Mar. 28: Leaf from the Beauvais Missal, in Latin, illuminated manuscript on parchment, [Northern France (perhaps Beauvais or Amiens)], [fourteenth century (c.1310)]. £4,000 to £6,000.
    Forum Mar. 28: Aubrey (John). [Remaines of Gentilisme and Judaisme], manuscript in English, Latin and Greek, [c. 1693]. £30,000 to £50,000.
    Forum Auctions
    Books, Manuscripts and Works on Paper
    28th March 2024
    Forum Mar. 28: Byron (George Gordon Noel, Lord). Poems on Various Occasions, first edition, Harriet Maltby's copy, Newark, Printed by S. & J. Ridge, 1807. £30,000 to £40,000.
    Forum Mar. 28: Tolkien (J.R.R.) The Hobbit, first edition, second impression with dust-jacket, 1937 [but 1938]. £7,000 to £10,000.
    Forum Mar. 28: Blake (William).- Thornton (Robert John). The Pastorals of Virgil, 2 vol., engraved plates by William Blake, 1821. £8,000 to £12,000.
    Forum Auctions
    Books, Manuscripts and Works on Paper
    28th March 2024
    Forum Mar. 28: America.- Mount (William J.) & Thomas Page. The English Pilot…, [bound with] The Fourth Book, describing The West Indies Navigation from Hudson's-Bay to the River Amazones, 1721. £20,000 to £30,000.
    Forum Mar. 28: Oldfield (Henry Ambrose), Rajman Singh Chitrakar & others. An album of 160 photographs and 13 original artworks, (1833-1919), [c. 1850s-1880s]. £20,000 to £30,000.
    Forum Mar. 28: Audubon (John James) [and William MacGillivray]. Ornithological Biography…, 5 vol., first edition, presentation copy inscribed by Audubon, Edinburgh, 1831-49 [i.e. 1831-39]. £10,000 to £15,000.

Rare Book Monthly

Articles - August - 2007 Issue

AE Services Part 3: Current Price Estimator

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

  • Forum Auctions
    Colour Plate Books from the Library of Norman Bobins
    Part 2
    27th March 2024
    Forum Auctions, Mar. 27: Alken (Henry). Sporting Notions, first edition, T.McLean, 1832-33. £800 to £1,200.
    Forum Auctions, Mar. 27: Bardi (Lorenzo). Nuova Raccolta delle piu interessanti Vedute della Citta di Firenze…, Florence, Lorenzo Bardi, [c.1840]. £1,500 to £2,000.
    Forum Auctions, Mar. 27: Crawfurd (John). Journal of an Embassy from the Governor-General of India to the Court of Ava..., first edition, 1829. £1,000 to £1,500.
    Forum Auctions
    Colour Plate Books from the Library of Norman Bobins
    Part 2
    27th March 2024
    Forum Auctions, Mar. 27: Dawe (George, engraver). The Life of a Nobleman, first edition, Geo. Henderson, [c.1825]. £1,000 to £1,500.
    Forum Auctions, Mar. 27: [Doyle (John)], "H.B.". Political Sketches &c., 10 vol. including The Descriptive Key to H.B., Thomas McLean, [1829-51]. £4,000 to £6,000.
    Forum Auctions, Mar. 27: Eben (Adolphus Christian Frederick, Baron von) and Nicolaus Heideloff. Modèles de l'Uniforme Militaire Adopté dans l'Armée Royale de Suède, Rudolph Ackerman, 1808. £1,500 to £2,000.
    Forum Auctions
    Colour Plate Books from the Library of Norman Bobins
    Part 2
    27th March 2024
    Forum Auctions, Mar. 27: Geissler (J.G.G.) and Friedrich Hempel. Mahlerische Darstellungen der Sitten, Gebrauche und Lustbarkeiten bey den Russischen, Tartarischen…, 4 parts in 1, Leipzig and Paris, [1804]. £1,000 to £1,500.
    Forum Auctions, Mar. 27: Hunt (Charles). Portraits of Winning Horses...of the Derby, Oaks, & St. Leger, from the Year 1842 to 1849…, Rock Brothers & Payne, 1849. £1,500 to £2,000.
    Forum Auctions, Mar. 27: Kunike (Adolf Friedrich). Zwey hundert und sechzig Donau-Ansichten nach dem Laufe des Donaustromes…, Vienna, Leopold Grund, 1826. £3,000 to £5,000.
    Forum Auctions
    Colour Plate Books from the Library of Norman Bobins
    Part 2
    27th March 2024
    Forum Auctions, Mar. 27: Lasinio (Carlo). [Matrimony], Florence, 1790. £1,500 to £2,000.
    Forum Auctions, Mar. 27: Reinhardt (Joseph). A Collection of Swiss Costumes, in Miniature, second English edition, James Goodwin, [1828]. £800 to £1,200.
    Forum Auctions, Mar. 27: Wengen (Gottfried Durst von). Die Öffentliche Maskerade Bamberg am Fastnachts-Montage 1833…, Bamberg, [1833]. £2,000 to £3,000.
  • Sotheby’s
    Modern First Editions
    Available for Immediate Purchase
    Sotheby’s, Available Now: Winston Churchill. The Second World War. Set of First-Edition Volumes. 6,000 USD
    Sotheby’s, Available Now: A.A. Milne, Ernest H. Shepard. A Collection of The Pooh Books. Set of First-Editions. 18,600 USD
    Sotheby’s, Available Now: Salvador Dalí, Lewis Carroll. Alice's Adventures in Wonderland. Finely Bound and Signed Limited Edition. 15,000 USD
    Sotheby’s
    Modern First Editions
    Available for Immediate Purchase
    Sotheby’s, Available Now: Ian Fleming. Live and Let Die. First Edition. 9,500 USD
    Sotheby’s, Available Now: J.K. Rowling. Harry Potter Series. Finely Bound First Printing Set of Complete Series. 5,650 USD
    Sotheby’s, Available Now: Ernest Hemingway. A Farewell to Arms. First Edition, First Printing. 4,200 USD

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