Jyrki's presentation was very informative. In a nutshell, he has studied every
Otho type and
applied his scientific expertise in biology to categorizing and analyzing
Otho coins. Unlike many studies, and certainly unlike early/mid 20th C. methods, he
applied both statistical analysis and more technologically sophisticated photographic analysis to identify dies and die pairs. He also very generously allowed many of
his coins to be tested for metallurgy and factored those results into the die analysis to come up with a chronological theory -- all fitting within Otho's barely 90 day reign. I was quite surprised at the number of dies he identified, as well as the statistical analysis of the number of dies that probably existed but have not come to light. (I have to admit I could not keep with the statistics on that aspect!) I think Jyrki said
his papers are available on line.
Jyrki also made the presentation move smoothly. He has deep in statistics, but the hour flew by.
For me, this presentation was the highlight of NYINC this year. I did not go to the
auctions, but their press releases said they did well. (A smaller
scale dealer told me they were over-stated, but I have no direct info.) I went on both weekend days and did not see many coins in my
area, and, of those, I routinely heard "
consignment, I can only give you maybe 5%", which is not very encouraging at a show. Many dealers
had packed up by noon on Sunday, but I do not know if that is unusual. It also seemed like there are fewer ancients, both coins and dealers, each year. And more slabbed coins, which I personally find unappealing and geared simply to speculating.
NYINC would benefit from more programs like Jyrki's presentation.