In planning the sale, to mitigate potential weakness primarily due to the economy, I requested and Bonhams agreed to provide extended terms to buyers. They prepared an exceptional catalogue and conducted a well organized publicity campaign. They purchased ads in various media including a full back page in color in the New York Times national edition. After the auction some suggested that the sale was too large. If that's the case it bodes ill for the millions of books, manuscripts, maps and ephemera that will change hands over the next twenty-five years as baby-boomer dealers dispose and retire. In my view the number of lots sold at auction will increase significantly over the next decade.
For this reality which for me amounts to a certainty, the internet will be an ever better, ever more important tool and will need to be. Larger volumes of material will need larger audiences to absorb them. Today the net, as far as collectible books are concerned, is only now becoming important. In a few years it will be indispensible. For this sale Bonhams' repertoire of traditional tools carried the day but we are on the bridge to the widely dispersed and easily accessed electronic tomorrow. The sound of horsemen rattle in our ears and there will be no turning back.
In a perfect world information is widely known but this is not yet the case. The internet has made enormous strides in disseminating facts and data but is not yet the crucial factor in how institutions, dealers and collectors connect with collectible material. Nevertheless the web gathers strength quickly. In this interim those who use the internet extensively, often aggressively buy or bid but limit themselves to current valuations found on AE or personally construct them from research. This makes absolute sense. The basis of collecting should be logic, not whim and the market is moving in that direction. My sense is that 10 years ago internet penetration for the rare book field was 5% and today perhaps 40%. In 5 years it will be 70% and in 10 years 95%. Information increasingly drives the market and it is only a matter of time before those who want it have it. The effect will be to re-prioritize by relevance, rarity, importance and price and generally take prices higher. In the short term inefficient distribution of information may restrain buying but the market is rapidly becoming efficient and I believe this sale will aid in the transition.
In the short term the sale confirmed that the re-absorption rate for material moving from collectors through the rooms to acquirers is limited both by price and volume. Those who acquired did so both because they coveted the material [as I did when I acquired] and/or saw the books as appealing investments. For those who acquired, whether out of passion or as investments, these purchases will prove to be good decisions.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 156: Cornelis de Jode, Americae pars Borealis, double-page engraved map of North America, Antwerp, 1593.
Swann, Dec. 9: Lot 206: John and Alexander Walker, Map of the United States, London and Liverpool, 1827.
Swann, Dec. 9: Lot 223: Abraham Ortelius, Typus Orbis Terrarum, hand-colored double-page engraved world map, Antwerp, 1575.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 233: Aaron Arrowsmith, Chart of the World, oversize engraved map on 8 sheets, London, 1790 (circa 1800).
Swann, Dec. 9: Lot 239: Fielding Lucas, A General Atlas, 81 engraved maps and diagrams, Baltimore, 1823.
Swann, Dec. 9: Lot 240: Anthony Finley, A New American Atlas, 15 maps engraved by james hamilton young on 14 double-page sheets, Philadelphia, 1826.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 263: John Bachmann, Panorama of the Seat of War, portfolio of 4 double-page chromolithographed panoramic maps, New York, 1861.
Swann, Dec. 9: Lot 265: Sebastian Münster, Cosmographei, Basel: Sebastian Henricpetri, 1558.
Swann, Dec. 9: Lot 271: Abraham Ortelius, Epitome Theatri Orteliani, Antwerp: Johann Baptist Vrients, 1601.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 283: Joris van Spilbergen, Speculum Orientalis Occidentalisque Indiae, Leiden: Nicolaus van Geelkercken for Jodocus Hondius, 1619.
Swann, Dec. 9: Lot 285: Levinus Hulsius, Achtzehender Theil der Newen Welt, 14 engraved folding maps, Frankfurt: Johann Frederick Weiss, 1623.
Swann, Dec. 9: Lot 341: John James Audubon, Carolina Parrot, Plate 26, London, 1827.
Sotheby’s Book Week December 9-17, 2025
Sotheby’s, Dec. 11: Darwin and Wallace. On the Tendency of Species to form Varieties..., [in:] Journal of the Proceedings of the Linnean Society, Vol. III, No. 9., 1858, Darwin announces the theory of natural selection. £100,000 to £150,000.
Sotheby’s, Dec. 11: J.K. Rowling. Harry Potter and the Philosopher's Stone, 1997, first edition, hardback issue, inscribed by the author pre-publication. £100,000 to £150,000.
Sotheby’s, Dec. 11: Wolfgang Amadeus Mozart. Autograph sketchleaf including a probable draft for the E flat Piano Quartet, K.493, 1786. £150,000 to £200,000.
Sotheby’s, Dec. 12: Hooke, Robert. Micrographia: or some Physiological Descriptions of Minute Bodies made by Magnifying Glasses. London: James Allestry for the Royal Society, 1667. $12,000 to $15,000.
Sotheby’s, Dec. 12: Chappuzeau, Samuel. The history of jewels, first edition in English. London: T.N. for Hobart Kemp, 1671. $12,000 to $18,000.
Sotheby’s, Dec. 12: Sowerby, James. Exotic Mineralogy, containing his most realistic mineral depictions, London: Benjamin Meredith, 1811, Arding and Merrett, 1817. $5,000 to $7,000.