A Gift For Polydektes
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A Gift For Polydektes: False patinas
In Classical Deception (page 54) Wayne Sayles mentions the excellent patinas on Sicilian fake coins starting in the 1990s. After his book was published I noticed copies of the coin Sayles used as an...
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A Gift For Polydektes Posted by The ANS library has 99 numismatic books published in 1927. 1927 wasn't a big year for numismatic works. The only book published in 1927 that I have read, a...
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A Gift For Polydektes: Kushano-Sasanian coins are kind of interesting
Last week I posted on import restrictions on Roman coins. That post got 13 replies -- a much higher volume than my usual posts. Looking ov...
Digitalhn.blogspot.com news digest
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5 years
Laser cleaning of ancient coins
Briefly noted: An 8-year-old paper by Eleni Drakaki, Andreas Karydas, et al: “Evaluation of laser cleaning of ancient Greek, Roman and Byzantine coins”. Successful results are claimed, sometimes in conjunction with mechanical cleaning.
The article is a followup to an earlier paper, “Laser cleaning on Roman coins”. The image for this post comes from the first paper.... -
5 years
Which US note is the most common?
There are more hundred dollar bills in circulation than $1s.
H/T Marginal Revolution. -
5 years
Three-dimensional reconstruction of Roman coins from photometric image sets
“Three-dimensional reconstruction of Roman coins from photometric image sets”, a 2017 Journal of Electronic Imaging paper by Lindsay MacDonald, Vera Moitinho de Almeida, and Mona Hess.
The present study combined two datasets representing the surface topography of the two Faustina coins (Fig. 1). First, they were scanned by a 3-D color laser scanner, producing a point cloud of the surface shape. Second, they were photographed in an... -
5 years
The Insane Million Maker Master Counterfeiter
Good documentary storytelling on counterfeiting: Snap Judgement recently made a 22 minute segment about Frank Bourassa, a Canadian who counterfeited a quarter of a billion US dollars in twenties in 2009.
I calculate that $200,000,000 in $20 bills would weight 10 tons and would completely fill a 12' moving van....
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| Web host: | Google LLC |
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| Registrant: | Google LLC |
| Updated: | June 29, 2023 |
| Expires: | July 31, 2024 |
| Created: | July 31, 2000 |
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