Get to Know RBH: the Get Current Estimate Function
- by Thomas C. McKinney
There are two powerful functions of the Rare Book Transaction History (RBTH) database that you, as a new or longtime member of Rare Book Hub, may not have noticed, so this article is a brief introduction and walkthrough of our Get Current Estimate feature.
Get Current Estimate is our attempt to make synthesizing the results you find searching the Rare Book Transaction History easier. Many records in the RBTH — both contemporary and historical auction records — include a realized price. By selecting relevant items from your results, you can quickly have us do an aggregated value calculation for specific items, including adjusting for inflation and currency, rather than manually doing it yourself.
Any time that you search the Rare Book Transaction History, you’ll notice that every result has a checkbox on the far-left side:
If you search with just general keywords, you’ll have more work to do sifting through the various results and only selecting relevant items. However, being too specific can also be a hinderance. I have personally found that by being general with the title (usually just one or two specific words), but very specific with an author’s last name and the year printed, relevant records are easier to find. In writing this article, I also discovered that putting the year printed in the general keyword search does not currently work.
In this example, I’ve done an advanced search with “Bevier” for author, “Indians” for title, and 1846-1846 for the year printed. I’m presented with 25 records. These are all relevant records, but many of them are asking prices from dealer catalogs. In trying to establish a valuation based on realized prices at auction, I’m only selecting auction records. There are six, ranging from 1915 to 1999. After checking the selector boxes for these six records, I’m ready to “Get Current Estimate”:
An in-screen pop-up window appears:
As someone who studied economics in college, this is a fascinating page. Beyond the first number you see of the Average Current Estimate, we also provide other interesting data. One of these is the Probability of Reappearance at auction. This can be a useful tool when trying to determine rarity, although I would counsel other methods of due diligence as well. We also display every priced record’s adjusted for inflation — with a twist. Normal, economic inflation is calculated using a price index, specifically the Consumer Price Index (CPI). At RBH, we have enough historical and contemporary data that we have created our own Book Auction Price Index. We calculate this by finding the mean price of auctions in our database for each year and comparing them to the current mean price.
There’s one last tidbit worth mentioning. I’ve fielded requests at least a couple times by members requesting a way to convert foreign currencies to American dollars. The Get Current Estimate function also does this. If it’s an older record, it will be an adjusted dollar value. For prices from 2022, it will be a straight currency conversion.
If you have any questions or simply want to discuss this feature (or anything else about Rare Book Hub), you can reach me at tom@rarebookhub.com.
Old World Auctions (Sept 11): Lot 732. Early Announcement of Continental Congress' Declaration of Independence (1776) Est. $12,000 - $15,000
Old World Auctions (Sept 11): Lot 361. One of Ortelius' Most Decorative Maps in Full Contemporary Color (1585) Est. $9,500 - $12,000
Old World Auctions (Sept 11): Lot 55. Early Edition of One of the Most Important 16th Century Maps of the New World (1545) Est. $6,000 - $7,500
Old World Auctions (Sept 11): Lot 27. Fascinating Japanese Satirical Map of the World Published After WWI (1924) Est. $2,750 - $3,500
Old World Auctions (Sept 11): Lot 637. Complete Example of De Bry's Petits Voyages, Part VIII (1606) Est. $4,750 - $5,500
Old World Auctions (Sept 11): Lot 50. Extremely Rare Uncut Sheet from Sylvanus's 1511 Edition of Ptolemy's Geographia (1511) Est. $2,000 - $2,300
Old World Auctions (Sept 11): Lot 399. One of the Most Desired Maps of Ireland by John Speed (1610) Est. $2,750 - $3,500
Old World Auctions (Sept 11): Lot 689. Pictorial Map of Melbourne in the Style of MacDonald Gill (1934) Est. $900 - $1,100
Old World Auctions (Sept 11): Lot 652. Blaeu's Carte-a-Figures Map of Africa in Full Contemporary Color (1663) Est. $3,000 - $3,750
Old World Auctions (Sept 11): Lot 729. Hand-Colored Image of David Handing the Letter to Uriah (1518) Est. $1,000 - $1,300
Old World Auctions (Sept 11): Lot 533. Eight-Volume Set Recounting Travels of Anacharsis in Greece (1789) Est. $800 - $950
Dominic Winter Auctioneers September 11 Printed Books, Maps & Manuscripts, The Polydore Vergil bound for Queen Mary I
Dominic Winter, Sep. 11: Exquemelin (Alexandre Olivier). The History of the Bucaniers of America..., 4 parts in one, 3rd edition, 1704. £1,000-1,500
Dominic Winter, Sep. 11: Greenough (George Bellos). A Physical and Geological Map of England & Wales..., Geological Society, July 1865. £5,000-8,000
Dominic Winter, Sep. 11: Illuminated Psalter. Manuscript Psalter with Calendar, Flanders or North-East France, late 13th century. £7,000-10,000
Dominic Winter Auctioneers September 11 Printed Books, Maps & Manuscripts, The Polydore Vergil bound for Queen Mary I
Dominic Winter, Sep. 11: Book of Hours. Illuminated manuscript on vellum, Use of Rome, in Latin, Florence, c. 1470s. £3,000-5,000
Dominic Winter, Sep. 11: Henry VIII (King of England). Assertio septem sacramentorum adversus Martinum Lutherum, Antwerp: Michiel Hillen, 1522. £3,000-5,000
Dominic Winter, Sep. 11: Binding for Queen Mary I of England and Ireland. Polydori Vergilii Urbinatis Anglicae..., 1555. £20,000-30,000
Dominic Winter Auctioneers September 11 Printed Books, Maps & Manuscripts, The Polydore Vergil bound for Queen Mary I
Dominic Winter, Sep. 11: Llwyd (Humphrey). The Breviary of Britayne..., 1st edition in English, 1573. William Lambarde's copy. £2,000-3,000
Dominic Winter, Sep. 11: Embroidered Binding. The Whole Book of Psalmes..., Imprinted for the Company of Stationers, 1634. £700-1,000
Dominic Winter, Sep. 11: Astronomy Manuscript. [Shakerley, Jeremy (1626-c.1655). Tabulae Britannicae, the British tables…], late 17th c. £1,000-1,500
Dominic Winter Auctioneers September 11 Printed Books, Maps & Manuscripts, The Polydore Vergil bound for Queen Mary I
Dominic Winter, Sep. 11: Vellucent Art Nouveau Binding [Book of Common Prayer] by Herbert Granville Fell, 1900. £1,000-1,500
Dominic Winter, Sep. 11: Palladio (Andrea). The Architecture of A. Palladio; in Four Books, 2nd edition, 1721. £2,000-3,000
Sotheby’s 10 September 2024 The Shem Tov Bible
Koller Auctions Books & Autographs 18 September 2024
Koller, Sep. 18: Cowper, William. Anatomia corporum humanorum ab excellentissimis… Utrecht, 1750. CHF 25,000 to 40,000
Koller, Sep. 18: Bell, Thomas. A Monograph of the Testudinata. London [1836-1842]. CHF 20,000 to 30,000.
Koller, Sep. 18: Gould, John. A monograph of the Trochilidae, or family of humming-birds [and] Supplement completed after the authors death…, London [1849-]1861 and [1880-]1887. CHF 50,000 to 80,000.
Koller Auctions Books & Autographs 18 September 2024
Koller, Sep. 18: Gould, John. The birds of New Guinea and the adjacent Papuan Islands, including many new species recently discovered in Australia. CHF 50,000 to 80,000.
Koller, Sep. 18: Levaillant, François. Histoire naturelle des oiseaux de paradis et des rolliers, suivie de celle des toucans et des barbus. Paris [1801-]1806. CHF 40,000 to 60,000.
Koller, Sep. 18: Pfinzing, Melchior. Die geverlicheiten und einsteils der geschichten des loblichen streytparen…, Nürnberg, 1517. CHF 40,000 to 60,000.
Il Ponte, Sep. 24-25: HAMILTON, Sir William - Campi Phlegraei. Napoli: 1779. € 50,000 - 80,000
Il Ponte, Sep. 24-25: KIRCHER, Athanasius - Turris Babel. Amsterdam: 1679. € 3,000 - 5,000
Il Ponte, Sep. 24-25: EDWARDS, George.London - Gleanings of Natural History. Londra: 1758-1764. € 7,000 - 10,000
Il Ponte, Sep. 24-25: HEVELIUS, Johannes - Cometographia. Danzica: 1668. € 20,000 - 30,000
Il Ponte, Sep. 24-25: KUPKA, Frantisek - Quatre histoires de blanc et noir. Parigi: 1926. € 10,000 - 15,000