Malek, Hodge Mehdi. 2019. Arab-Sasanian Numismatics and History during the Early Islamic Period in Iran and Iraq: The Johnson Collection of Arab-Sasanian Coins (Royal Numismatic Society Special Publication 55). 2 vols. London: Royal Numismatic Society.
This is the first major work to attempt a comprehensive survey of the Arab-Sasanian silver coinage since Walker’s 1941 Catalogue of the British Museum collection. It includes the latest research on the subject, both historical (chapters 1 to 4) and numismatic (chapter 5 to 15). All the coins (over 1,600), both silver drachms and copperfulus, in the Johnson collection are illustrated on the excellent plates. Where thJohnson collection does not have a specimen of an important coin an example is illustrated from another source, making this a truly important work
The extensive chapters on the persons named on the coins, the mints, and the Pahlavi, Arabic and Sogdian legends, make this an invaluable historical source. Other chapters discuss the copper issues with theirvaried designs, the eras and dates used, metrology, coins struck in the east in Sīstān and further north by the Hephthalites, and counter marks, as well as the designs found on the silver drachms. All Pahlavi and Arabic legends (mints, persons named, religious and other marginal legends, dates) are written out as theyappear on the coins in extensive tables. This makes it possible for a beginner in the series to read thesesometimes difficult legends.
See here the Table of Contents of the two volumes.