Monday, January 04, 2010

Bookride on book thieves

I remain too busy to post. Here is a link to Robin Healey blogging for Bookride on book thieves.

Friday, December 11, 2009

Cool Jobs: Forgery Expert

I've been too busy to post lately.

Here is a 4 minute video about the job of detecting fake antiquities (mostly lamps).

Tuesday, December 01, 2009

Minimum Wage Machine

Blake Fall-Conroy's Minimum Wage Machine “allows anybody to work for minimum wage” by dispensing a Lincoln cent every 5.04 seconds when a mechanical crank is turned. Turning for an hour will yield 715 (or 714?) cents an hour, or the minimum wage in New York state.

(via bOING bOING)

Monday, November 23, 2009

CoinArchives Pro Academic Edition

CoinArchives is now offering academic subscriptions with results that don't include auction prices realized. The yearly fee is less than the $600 professionals pay. How much less? I don't know: “Pricing is based on the number of accounts requested per institution.... Academic Edition accounts are for non-profit research and educational use only.

Sunday, November 22, 2009

Kirtas Books

Kirtas, the folks who make book scanners, has a new venture KirtasBooks.com to sell print-on-demand copies of scanned books. The web site has a store full of public domain books.

Unlike Elibron, Kirtas is offering to sell books they haven't yet scanned. They have loaded the catalog of the University of Pennsylvania library and the New York Public Library into their database. These libraries have many desirable numismatic works that Kirtas claims to offer in reprint; for example the Photiadès Pacha auction catalog (1890), Imhoof-Blumer's 2 volume Kleinasiatische Münzen (1901), or the three-volume The Weber collection: Greek coins (1922-1929).

I ordered four volumes of BMC Greek published post-1900 that Google doesn't offer.

Kirtas claims to offer these books for $10 in paperback or $20 in hardcover. Download-only will be $2 once someone has paid for paperback or hardcover. I am curious to see if Kirtas can deliver quality and if they seriously intend to sell The Weber Collection (317 plates!) for $20 in hardcover.

To fund this Kirtas offers something I haven't seen before, a patent-pending business model they call “Invest in Knowledge”. For abour $30 you get the paperback plus a 5% royalty whenever anyone buys another copy of the title from Kirtas. So you'll break even if 20 copies sell. (Kirtas is suggesting you should buy this for your grandchildren (!?!) so they must think it will be a long-term money maker.)

I thought about “investing” in the BMC Greek volumes but I somehow doubt Kirtas will sell 20 more copies of these books. Maybe I will be kicking myself for the next century when Kirtas turns itself into the Wal-Mart of 19th century books.

It's not just books on Greek coins, I found the 1866-1869 American Journal of Numismatics also for $10.

If these prices aren't low enough the coupon code Save20%KirtasBooks gives $8 paperbacks and $16 hardcovers.

1824 medal commemorates man hanged for check forgery

Stephen Adams reports for the Telegraph of London on a medal made in 1824 for check forger Henry Fauntleroy.
Timothy Millett, who is selling the coin at the Olympia Winter Fine Art and Antiques Fair in London, said: "At the time it really was a sensational case. He was 'doing a Madoff', you might say. The press absolutely loved it."

[Millett] thought perhaps a few hundred of the 'medals' were made by an entrepreneur looking to make a quick profit from the hanging, bought by people to show they attended "in the same way as we might buy a t-shirt".
Henry Fauntleroy was apparently the last man hanged for check forgery in England.

Using the Optical Mouse Sensor as a Two-Euro Counterfeit Coin Detector

EurekaAlert.org mentions a paper by Spanish researchers Marcel Tresanchez, Tomàs Pallejà, Mercè Teixidó and Jordi Palacín on detecting counterfeit Euro coins using the sensor from cheap optical mice.

The full report PDF is available from MDPI - Open Access Publishing. The abstract claims the software does as well as a trained human and better than an untrained one. The report was published in Sensors volume 9 issue 9.
The researcher does explain that not just any optical mouse sensor will work, as images must be captured in real time, with a minimum resolution of 15x15 pixels (the team used 30x30 pixels). It is also better to use an LED- or infrared-based sensor, and not laser technology, as these[sic] provide images that are too wide.

Hadrien Rambach library auction

The catalog for the auction of the Numismatic Library of Hadrien Rambach is now online. 255 lots of books. There are also 48 lots of ancient coins.

The e-Sylum mentioned this last week, but the catalog wasn't available then. Hadrien Rambach is a coin specialist at Spink & Son.

The estimates seem low. Lot 572, Babelon's Inventaire sommaire de la colleciton Waddington (1898, 4 volumes), his Rec. Gen. (1904), and his son's Catalogue de la collection de Luynes (1924-1932), is estimated at only 100 euros.

Whoever made the catalog has copying text to the clipboard disabled, which is profoundly irritating.

A correspondent recently asked why auctioneers make low estimates. He mention the usual reasons (unfamiliarity with the market, desire to inspire new bidders) and the usual problem (bad estimates send a false signal to collectors who then don't research what the usual price is). For books I would add the irritation of storing and returning unsold lots. If a coin doesn't make reserve it can go back into the safe. Who has space for a book that doesn't sell?

Princeton computer science professor and ancient coin collector Kenneth Steiglitz wrote a book, Snipers, Shills, and Sharks: eBay and Human Behavior which is apparently on the psychology of auctions including ancient coin auctions on eBay. Has anyone read it? Perhaps it includes the latest research on how buyers and sellers make decisions.

Friday, November 20, 2009

Countermarked Perseus bronze

Bronze coin of king Perseus of Macedon, 179-168 BC.

This coin has a counterstamp, I believe of a prow.

I couldn't find any other prow counterstamps online. Perseus and his father Philip V struck other coins with prow types though. Is there an online database of counterstamps? I searched ISEGRIM and found Roman coins of the 2nd and 3rd century AD with prow counterstamps, but nothing Hellenistic.

A recent eBay auction of another countermarked Perseus had a similar countermark that could be a prow but could also be almost anything.

Thursday, November 19, 2009

Stack family book auction

The catalog for the Stacks family numismatic library, to be auctioned in New York in January 2010, is up on George Frederick Kolbe's web site.

400 lots. The catalog itself is 171 pages! The lots include Guillaume Bude's De Asse et Partibus (1524!), Haeberlin's Aes Grave (1910), Gnecchi's I Medaglioni Romani (1912) and first editions of BMC Greek (all 29 volumes as a single lot.) The IBSCC's Counterfeit Reports are there, “possibly complete” for 1976-March 1981.

A lot of volumes 1-6 of The Numismatist is estimated at $25,000! Some rare correspondance on the Colonel Green collection and its sale to Egypt's King Farouk is estimated at the same price.