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.
DOYLE, July 23: STOKES, I. N. PHELPS. The Iconography of Manhattan Island, 1498-1909. New York: Robert H. Dodd, 1915-28. Estimate: $3,000-5,000
DOYLE, July 23: [AUTOGRAPH - US PRESIDENT]FRANKLIN D. ROOSEVELT. A signed photograph of Franklin D. Roosevelt. Estimate $500-800
DOYLE, July 23: [ARION PRESS]. ABBOTT, EDWIN A. Flatland. A Romance of Many Dimensions. San Francisco, 1980. Estimate $2,000-3,000.
DOYLE, July 23: TOLSTOY, LYOF N. and NATHAN HASKELL DOLE, translator. Anna Karénina ... in eight parts. New York: Thomas Y. Crowell & Co., [1886]. Estimate: $400-600
DOYLE, July 23: ROWLING, J.K. Harry Potter and the Goblet of Fire. London: Bloomsbury, 2000. Estimate $1,200-1,800
Freeman’s | Hindman Western Manuscripts and Miniatures July 8, 2025
Freeman’s | Hindman Western Manuscripts and Miniatures July 8, 2025
Freeman’s | Hindman, July 8. FRANCESCO PETRARCH (b. Arezzo, 20 July 1304; d. Arqua Petrarca, 19 July 1374). $20,000-30,000.
Freeman’s | Hindman, July 8. CIRCLE OF THE MASTER OF THE VITAE IMPERATORUM (active Milan, 1431-1459). $15,000-20,000.
Freeman’s | Hindman, July 8. CIRCLE OF ATTAVANTE DEGLI ATTAVANTI (GABRIELLO DI VANTE) (active Florence, c. 1452-c. 1520/25). $15,000-20,000.
Freeman’s | Hindman, July 8. FOLLOWER OF HERMAN SCHEERE (active London, c. 1405-1425). $15,000-20,000.
Freeman’s | Hindman, July 8. An exceptionally rare, illuminated music leaf from a Mozarabic Antiphonal with sister leaves mostly in museum collections. $11,500-14,000.
Freeman’s | Hindman, July 8. Exceptional leaf from a prestigious Antiphonary by a leading illuminator of the late Duecento. $11,500-14,000.
Freeman’s | Hindman, July 8. CIRCLE OF THE MASTER OF MS REID 33 and SELWERD ABBEY SCRIPTORIUM (AGNES MARTINI?) (active The Netherlands, Groningen, c. 1468-1510). $10,000-15,000.
Freeman’s | Hindman, July 8. Previously unknown illumination from one of the most renowned Gothic Choir Book sets of the Middle Ages. $6,000-8,000.
Forum Auctions Fine Books, Manuscripts and Works on Paper 17th July 2025
Forum Auctions Fine Books, Manuscripts and Works on Paper 17th July 2025
Forum, July 17: Lucianus Samosatensis. Dialogoi, editio princeps, second issue, Florence, Laurentius Francisci de Alopa, 1496. £10,000 to £15,000.
Forum, July 17: Boccaccio (Giovanni). Il Decamerone, Florence, Philippo di Giunta, 1516. £10,000 to £15,000.
Forum, July 17: Henry VII (King) & Philip the Fair (Duke of Burgundy). [Intercursus Magnus], [Commercial and Political Treaty between Henry VII and Philip Duke of Burgundy], manuscript copy in Latin, original vellum, 1499. £8,000 to £12,000.
Forum, July 17: Bible, English. The Holy Bible, Conteyning the Old Testament, and the New, Robert Barker, 1613. £4,000 to £6,000.
Forum, July 17: Bond (Michael). A Bear Called Paddington, first edition, signed presentation inscription from the author, 1958. £4,000 to £6,000.
Forum Auctions Fine Books, Manuscripts and Works on Paper 17th July 2025
Forum, July 17: Yeats (William Butler). The Secret Rose, first edition, with extensive autograph corrections, additions and amendments by the author for a new edition, 1897. £6,000 to £8,000.
Forum, July 17: Byron (George Gordon Noel, Lord). Childe Harold's Pilgrimage, bound in dark green morocco elaborately tooled in gilt and with 3 watercolours to fore-edge, by Fazakerley of Liverpool, 1841. £4,000 to £6,000.
Forum, July 17: Miró (Juan), Wassily Kandinsky, John Buckland-Wright, Stanley William Hayter and others.- Spender (Stephen). Fraternity, one of 101 copies, with signed engravings by 9 artists. £6,000 to £8,000.
Forum, July 17: Sowerby (George Brettingham). Album comprising 22 leaves of original watercolour drawings of fossil remains of Cheltenham and Vicinity, [c.1840]. £6,000 to £8,000.
Forum, July 17: Mathematics.- Blue paper copy.- Euclid. De gli Elementi, Urbino, Appresso Domenico Frisolino, 1575. £12,000 to £18,000.
Sotheby’s Books, Manuscripts and Music from Medieval to Modern Now through July 10, 2025
Sotheby’s Books, Manuscripts and Music from Medieval to Modern Now through July 10, 2025
Sotheby’s, Ending July 10: Book of Hours by the Masters of Otto van Moerdrecht, Use of Sarum, in Latin, Southern Netherlands (Bruges), c.1450. £20,000 to £30,000.
Sotheby’s, Ending July 10: Albert Einstein. Autograph letter signed, to Attilio Palatino, on his research into General Relativity, 12 May 1929. £12,000 to £18,000.
Sotheby’s, Ending July 10: John Gould. The Birds of Europe, [1832-] 1837, 5 volumes, contemporary half morocco, subscriber’s copy. £40,000 to £60,000.
Sotheby’s Books, Manuscripts and Music from Medieval to Modern Now through July 10, 2025
Sotheby’s, Ending July 10: Ian Fleming. A collection of James Bond first editions, 8 volumes in all. £8,000 to £12,000.
Sotheby’s, Ending July 10: J.K. Rowling. Harry Potter and the Philosopher's Stone, 1997, first edition, hardback issue. £50,000 to £70,000.
Sotheby’s, Ending July 10: J.R.R. Tolkien. Autograph letter signed, to Amy Ronald, on Pauline Baynes's map of Middle Earth, 1970. £7,000 to £10,000.