Rick Witschonke has written an interesting article for the Winter 2008 edition of the ANS Magazine. It is entitled, "Better Late than Never, Newell Manuscript Finally Published." The article is currently available only in paper format, but should eventually be posted on the ANS website. See: http://www.numismatics.org/
The article discusses the 75 year delay in publication of coins found in archaeological excavations at Beisan in Israel. The University of Pennsylvania sponsored the dig and in 1931 published an initial group of coins found in the 1921-1923 seasons. From this point on, coins accumulated and between 1931 and 1936, some 261 coins were sent in three distinct groups to Edward T. Newell, the President of the ANS, for attribution and cataloguing. Newell, an amazingly productive researcher, quickly produced typescript catalogues of these coins. These were in the hands of the University of Pennsylvania Museum when Newell passed away in 1941. Copies of the manuscripts were found in the ANS archives in 2007. Their rediscovery prompted the belated publication of Newell's research in cooperation with the University of Pennsylvania as part of the celebrations of the 150th anniversary of the ANS.
This story highlights the reality that many coins found at archaeological digs never actually get published. Others only get published after long delays. True, some countries now require publication of archaeological finds within a reasonable time frame, but there is no universal rule and one wonders how strictly such rules that exist are enforced when it comes to artifacts as common as coins. Yet, some members of the archaeological community insist that restrictions on coin collectors are necessary to promote numismatic research.