C'est bien ERIC : encyclopedia of Roman imperial coins.
Voici la description que j'ai copiee sur FAC :
by Rasiel Suarez
The Encyclopedia of Roman Imperial Coins (ERIC) is a compelling new book on Roman coins written by a collector for collectors. Among its main features, this work combines a comprehensive listing of bust and reverse types, legends and mints for all imperial rulers from the time of Augustus through the downfall of Rome as well as an introduction to the Byzantine corpus.
ERIC also includes a full featured catalog listing major and minor issues for this time period listing a total of over 8,000 types. Color photographs, historical biographies and an introductory tutorial serve to make this the most user friendly book available on the subject.
Click here to see a sample chapter - Commodus
Click here to see a sample chapter - Gratian
BERIC. The Encyclopedia of Roman Imperial Coins (ERIC) by Rasiel Suarez, hardbound with dust jacket, 643pp., January 2005, 1st edition; $75.00 (€58.05)