"The Roman Republican Die Project (RRDP) aims to provide URIs for each obverse and reverse die connected to Michael Crawford's Roman Republican Coinage (RRC, 1974) types published in Coinage of the Roman Republic Online. RRDP is based on Richard Schaefer’s archive of Roman Republican Dies, comprising more than 300,000 specimen images. The digitized version of Schaefer’s archive is available on ARCHER, the digital archives of the American Numismatic Society." Here's the link!
It's actually been online for quite some time -- we had at least one thread about it, in which Prof. Yarrow participated, and again when they added Schaefer's "clippings" to his "binders" -- but it seems that the project has now advanced to the next contemplated stage. I will check it out soon to see exactly what they've added and try to figure out what difference it makes.